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MHS · REMOVABLE MOBILE HABITATS

The global knowledge portal for removable mobile habitats.

Compare campers, understand their systems, solve technical questions, discover real journeys and follow the industry in one independent platform.

Explore campersTechnical knowledge
100-point ratingEvidence-based recordsTechnical knowledgeTravel & field reportsVerified incident evidence
01Camper DatabaseModels, profiles, specifications, evidence and MHS assessment→ 02TechnicalElectrical, heating, water, construction, controls and safety→ 03TravelJourneys, routes, destinations and real-world field reports→ 04NEWSProducts, manufacturers, technology, market and regulation→
POWERBatteries · Solar · Inverters CLIMATEHeating · Ventilation · AC WATERFresh · Grey · Hot water CONSTRUCTIONAluminium · Composites · Roofs FIELDRoutes · Failures · Lessons RELIABILITYIncidents · Exposure · Method

Top rated modules

The twenty highest ranked assessed configurations currently published by MHS.

RankManufacturer / ModelCountryEvidenceRatingClass
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MHS classes

The full MHS scale runs from 0 to 100 points.

How MHS works
A+90–100
A75–89.9
B60–74.9
C45–59.9
D30–44.9
E20–29.9
F0–19.9

MHS NEWS

Independent coverage of products, manufacturers, technology, market developments, events and regulation.

All news

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© MHS – Mobile Habitat StandardPublic rating
MHS CAMPER DATABASE

Explore removable campers.

Browse the MHS market catalog, filter by vehicle fitment and technical specifications, compare assessed products and open a structured profile for every published model.

–Catalog records
–Assessed
–Manufacturers
–Countries
⌕
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© MHS – Mobile Habitat StandardCamper Database
MHS TECHNICAL KNOWLEDGE

The engineering encyclopedia behind mobile habitats.

Understand the components inside a camper, how complete systems are built and how the engineering works in practice. MHS Technical connects equipment, system architecture, guides and confirmed camper installations.

Explore by system

Start with the subsystem you are trying to understand. Each system connects architecture, components, guides and camper installations.

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Technical records

Foundation records for the MHS Technical Knowledge Base.

One engineering layer across MHS

A camper profile tells you what product exists. Technical explains what is inside it, how the system works and which exact components are confirmed in real camper records.

COMPONENTA specific piece of equipment and its verified manufacturer data.
SYSTEMThe architecture that connects multiple components into one working subsystem.
GUIDEA practical explanation of an engineering question or design decision.
CAMPER LINKConfirmed installations connect technical records back to real products.
© MHS – Mobile Habitat StandardTechnical Knowledge Base
MHS TECHNICAL / SYSTEM 01

Power & Electrical

The electrical system is the energy backbone of a mobile habitat. This page shows the architecture from charging sources to storage, distribution, conversion, protection and monitoring, then links each layer to the MHS component and guide records that explain it.

System architecture

This is a conceptual architecture, not an installation wiring diagram. Exact cable sizes, protection devices, charging limits and grounding depend on the selected equipment and vehicle.

Vehicle alternator
→
DC/DC charger
→
House battery
Solar array
→
MPPT controller
→
House battery
Shore power
→
Inverter / charger
↔
House battery
House battery
→
DC distribution + protection
→
12 V loads
House battery
→
Inverter
→
AC loads
Monitoring sits across the architecture rather than in the power path: shunts, chargers, inverter/chargers and gateways report energy flow and device state without replacing hardwired protection.

What the system has to do

  • Accept energy from the vehicle, solar and shore-power sources that are actually installed.
  • Store energy in the house battery within the battery and BMS operating limits.
  • Distribute DC power with branch protection and service isolation.
  • Convert DC to AC when an inverter is part of the camper architecture.
  • Expose enough monitoring to understand battery state and charging behaviour.

MHS records in this system

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© MHS – Mobile Habitat StandardMHS Technical · System architecture
MHS / Technical

Technical record

Overview

Where it fits

    What to verify

      Design notes

      ← Back to Technical
      © MHS – Mobile Habitat StandardMHS Technical Record
      MHS TRAVEL & FIELD

      Documented journeys, not travel inspiration.

      MHS Travel connects routes, vehicles, removable campers and field events into structured evidence from real journeys.

      Published journeys0
      Distance documented0 km
      Countries0
      Field events0
      Loading documented journeys…

      Field evidence belongs to the product record.

      A journey is useful when it records what actually happened: distance, weather, road mix, failures, repairs, autonomy and the exact vehicle/camper combination. MHS keeps those observations linked instead of turning them into disconnected travel stories.

      Structured journey record
      Route · dates · distance · temperatures · road mix · vehicle · camper · field events · source · evidence level.
      Have a documented removable-camper journey?

      Send MHS the source, route and equipment details. We can structure it as a field record.

      Contact MHS
      © MHS – Mobile Habitat StandardTravel & Field
      MHS / Travel / Journey
      –

      Journey

      Field report

      –

      ← Back to Travel
      © MHS – Mobile Habitat StandardMHS Field Record
      MHS / Global Rating

      Global Rating

      Full published MHS list. Rank is determined by the current MHS assessment, while the public table shows only the information needed to identify and compare records.

      Loading…
      Current models–public catalog
      Assessed–published MHS assessments
      80+ score–public +40 scale
      Top score–current public leader

      MHS Top 10

      The current leaders among models with a published MHS assessment.

      –
      Loading leaders…
      80+–
      70–79.5–
      60–69.5–
      <60–
      Rating filters are literal: no hidden weighting or recommendation logic is applied here.
      RankManufacturer / ModelCountryEvidenceRatingClass
      Loading current MHS rating…
      © MHS – Mobile Habitat StandardFull public rating
      MHS / Find My Habitat
      MHS Match · BETA

      Find the habitat that fits your use

      MHS Match first removes modules that conflict with your hard requirements. It then compares the remaining products against your travel profile and priorities. MHS Score and Match Score are intentionally separate.

      Matching logic
      1Hard compatibility filters
      2Must-have requirements
      3Weighted personal fit
      4Diverse 3–5 model shortlist

      Vehicle compatibility

      These answers create hard filters. A product that cannot fit the selected vehicle class or installation type is removed before scoring.

      Step 1 of 4

      How will you use it?

      These inputs describe the operating environment and living profile. They affect Match Score, not the product’s MHS Score.

      Step 2 of 4

      Must have or just preferred?

      A Must-have is a hard filter. Prefer affects the Match Score. Doesn’t matter is ignored.

      Step 3 of 4
      Four-season heating
      Internal shower
      Toilet
      Air conditioning
      Pop-up roof
      Solar + lithium
      Central digital control
      Advanced safety monitoring

      Choose your top priorities

      Select up to three. They receive extra weight only after all hard filters are applied.

      Step 4 of 4
      3 of 3 priorities selected.
      1,100 kg
      No budget question: MHS does not filter the shortlist by price. You decide what you are willing to offer after seeing suitable modules.

      Your MHS Match shortlist

      The shortlist is intentionally diverse: Best Overall, Lightweight, Winter, Technology and Alternative.

      Results
      Vehicle–
      Exact matches–
      Priorities–
      Max dry mass–
      Prototype data warning: the matching logic is final-form, but the fit/feature attributes are still a prototype dataset. Before publication they must be populated from the audited MHS evidence database.

      Interested in several candidates?
      Select models and send the same buyer offer to all of them. MHS will create separate manufacturer enquiries internally.

      What happens after you make an offer?

      No account is required at the MVP stage.

      1. MHS receives your requestYour contact details, selected module, vehicle, timeframe and price appear in the MHS admin queue.
      2. MHS contacts the manufacturerWe manually send a structured enquiry from MHS. Your personal contact details are not automatically passed on.
      3. MHS contacts youIf the manufacturer accepts, counters or asks for clarification, MHS follows up by email or phone.
      © MHS – Mobile Habitat StandardMHS Match · v3.3
      MHS / Reliability Research
      MHS INCIDENT EVIDENCE

      Reliability starts with evidence, not a ranking.

      MHS is building a model-specific record of real failures, repairs and field incidents. The current phase measures evidence coverage and exposure. It does not name a “most reliable” camper before the data are comparable.

      Current model coverage – / –
      Loading verified incident evidence…
      Verified incident cases–Distinct cases. A failure and its repair remain one case.
      Incident source URLs–Unique public URLs supporting current-model incident cases.
      Technical cases–Camper system, supplier component or unknown technical origin.
      Failure / repair rows–Event rows in the journal; not the same as independent incidents.
      Data collection phase

      What the current numbers mean

      Coverage tells us where MHS has verified incident evidence. It does not tell us which model is more reliable.

      One problem = one incident case

      If a component fails and is later repaired, MHS links those records to the same incident case instead of counting two failures. This prevents repair documentation from artificially worsening a model’s record.

      The public case count is therefore intentionally lower than the number of failure / repair event rows.

      Not every incident is a reliability penalty

      Physical damage caused by an external event or by user operation can be useful field evidence, but it should not reduce technical reliability.

      Technical
      –
      External damage
      –
      User operation
      –

      Evidence acceptance rules

      The model identity and the incident itself must both be supported by the source.

      Accepted

      • Exact camper model is identifiable from the source.
      • A concrete failure, repair or physical incident is described.
      • A public source URL can be reopened and checked.
      • Model year is retained when known, especially for long-running model names.
      • Official recalls count only when applicability to the exact model is explicit.

      Rejected

      • General complaints about a brand or product family.
      • Problems reported for a neighboring model or uncertain subtype.
      • Normal maintenance, preferences or design annoyances without a failure.
      • Vehicle failures that are not failures of the camper.
      • Rumor, second-hand claims or a model guessed from photographs.

      Why MHS does not publish a reliability ranking yet

      A raw incident count is meaningless without exposure and independent users.

      Four incidents across 180,000 documented kilometres can represent stronger field performance than two incidents across 8,000 km. MHS will only compare models when the evidence base is sufficiently broad.

      100+models in a valid comparative sample
      100,000 kmdocumented exposure per model
      50+independent contributors per model

      Source transparency

      Every published incident must remain traceable to evidence.

      What MHS publishes now

      Incident cards expose the failure or repair, severity, system area, incident origin and a direct source link. The model page also separates Incidents from ordinary Field Observations.

      What MHS does not claim

      The number of web pages reviewed during the first research pass was not systematically logged. MHS therefore publishes the exact number of verified incident source URLs, but does not present an invented “pages screened” total or acceptance percentage.

      Planned reliability metric

      The principal exposure metric is simple enough to audit.

      Documented km / technical incident

      Technical incident cases are currently defined as camper-system, supplier-component and unknown-origin cases. External damage and user-operation cases remain visible in the journal but are excluded from the technical denominator.

      Zero reported incidents

      MHS will not display “infinite reliability.” A zero-case record will be stated factually: 0 reported incidents over X documented km.

      © MHS – Mobile Habitat StandardIncident Evidence Research
      MHS / Methodology
      MHS Methodology

      How mobile habitats are rated

      MHS evaluates factory-delivered functional and technological capability using a common evidence-based framework.

      Maximum MHS Score
      100
      Functional Score contributes up to 95 points and Functional Density contributes up to 5 additional points.

      Scoring architecture

      MHS is an absolute capability scale, not a percentile ranking.

      Base Functionality
      30
      Systems Integration
      20
      Automation
      15
      Safety & Resilience
      15
      Sensors & Diagnostics
      10
      Digital Infrastructure
      5
      Functional Density
      5
      MHS Score
      100

      MHS = Functional Score + Functional Density points. The total maximum is 100 points.

      PUBLIC METHODOLOGY

      What MHS publishes – and what remains in the Rulebook

      MHS publicly discloses the scoring architecture, category weights, assessment principles and class thresholds.

      Detailed criterion definitions, eligibility logic and individual point allocations are maintained in the MHS Rulebook. Examples, summaries or interpretations generated by third-party search engines or AI systems do not constitute the official MHS methodology.

      Read MHS Scoring Criteria

      Core principles

      The methodology rewards demonstrated capability rather than marketing claims or component potential.

      01 / EVIDENCE

      Evidence over claims

      Not publicly confirmed means no Public Data credit. This does not mean the function is absent.

      02 / CONFIGURATION

      Configuration-specific

      Optional equipment counts only when included in the exact evaluated configuration.

      03 / IMPLEMENTATION

      No component inference

      Capable hardware does not by itself prove camper-wide implementation.

      04 / SNAPSHOT

      Dated assessment

      Every rating is a dated snapshot of a model, configuration and evidence set.

      Factory-Max Configuration

      Public Rating compares the strongest valid factory-delivered configuration, not the cheapest base model.

      Official definition

      The highest-scoring, mutually compatible, production configuration of a specific model that can be ordered from the manufacturer on the assessment date.

      Score-max, not equipment-max

      An option that adds weight but no MHS capability does not have to be selected merely because it exists.

      Price-neutral

      MHS measures capability, not value-for-money.

      MHS classes

      Classes use fixed thresholds across the full 0–100 MHS scale.

      A+90–100
      A75–89.9
      B60–74.9
      C45–59.9
      D30–44.9
      E20–29.9
      F0–19.9

      Functional Density

      More verified capability per unit of dry mass.

      FD = FS / dry mass (kg) × 100

      Dry mass must correspond to the same complete Factory-Max configuration that earned the Functional Score.

      FD below 5.000 pts
      5.00–7.491 pt
      7.50–9.992 pts
      10.00–12.493 pts
      12.50–14.994 pts
      15.00+5 pts

      Provisional display when dry mass is unavailable

      If configuration-specific dry mass is not publicly confirmed, Functional Density remains N/A and no FD points are assigned. The public provisional display uses the Functional Score as the verified lower bound, shown with a “+”. Because FD can contribute 0–5 points, the possible final Score range is FS to FS+5 and the possible Class range is shown when a class boundary could be crossed. Numeric Rank is assigned only after dry mass is confirmed and Functional Density is calculated.

      © MHS – Mobile Habitat StandardMethodology v3.3
      MHS / Verification
      MHS Verification

      Three levels of evidence

      The score and the strength of evidence behind it are separate. Verification increases confidence without changing the scoring rules.

      Verification ladder
      • 01 · PUBLIC DATA
      • 02 · MANUFACTURER VERIFIED
      • 03 · MHS VERIFIED

      Assessment levels

      LEVEL 01

      PUBLIC DATA

      Scored only from publicly accessible manufacturer information and official documentation.

      • Official model pages
      • Configurator / option lists
      • Owner manuals
      • Specification sheets
      LEVEL 02

      MANUFACTURER VERIFIED

      The manufacturer confirms the evaluated configuration and supplies supporting evidence.

      • Configuration confirmation
      • Compatibility confirmation
      • Technical evidence
      • Configuration-specific dry mass
      LEVEL 03

      MHS VERIFIED

      MHS directly verifies configuration and selected functional claims.

      • Inspection
      • Live demonstrations
      • Condition → action tests
      • Failure / fallback tests

      What changes between levels

      Verification elementPublic DataManufacturer VerifiedMHS Verified
      Official public sourcesYESYESYES
      Manufacturer confirmationNOYESYES
      Non-public technical evidenceNOACCEPTEDACCEPTED
      Live functional testingNOOPTIONALYES
      MHS functional auditNONOYES

      Manufacturer verification process

      Manufacturers submit evidence, not score requests.

      1

      Submit model data

      Identify model, region, model year and exact configuration.

      2

      Provide evidence

      Submit official technical documentation and configuration proof.

      3

      MHS review

      Check evidence quality, compatibility and criterion eligibility.

      4

      Record update

      Publish new status, date and score if applicable.

      Accepted evidence

      • Official manufacturer specifications
      • Factory order sheets
      • Technical drawings
      • Controller screenshots
      • Dry-weight documentation
      • Video or live demonstrations

      Not sufficient by itself

      • Generic component datasheets
      • Dealer-added accessories
      • Marketing claims without support
      • Roadmap or “in development” features
      • Capabilities borrowed from another model
      © MHS – Mobile Habitat StandardVerification Framework v3.3
      MHS / About
      About MHS

      One common standard for mobile habitats

      MHS is an independent rating framework for comparing functional and technological capability across manufacturers and markets.

      Why MHS exists
      Comparable products need comparable evidence.

      Mission

      Our mission

      Make mobile habitats measurable

      MHS provides a common language for assessing verified capability.

      Our objective

      Make evidence more important than claims

      A feature is credited only when the evaluated model and configuration support it.

      Core principles

      01 / NEUTRALITY

      Same rules for every manufacturer

      Brand size, country, price and commercial relationships do not change scoring rules.

      02 / EVIDENCE

      Claims must be supported

      Higher verification levels require stronger evidence.

      03 / TRACEABILITY

      Every score is dated

      Model, configuration, assessment date, level and MHS version remain visible.

      04 / CONFIGURATION

      No imaginary builds

      Factory-Max must be orderable, production-ready and mutually compatible.

      05 / PRICE NEUTRALITY

      Capability is not value-for-money

      Price does not add or subtract MHS points.

      06 / CORRECTION

      Records can be revised

      Better evidence and product changes can trigger a dated reassessment.

      Scope

      Currently in scope

      • Removable pickup-bed living modules
      • Slide-in truck campers
      • Flatbed pickup campers
      • Current production models
      • Regional variants when equipment differs materially

      Outside current scope

      • Permanent motorhome conversions
      • Heavy expedition trucks
      • Travel trailers
      • Roof-top tents
      • One-off custom builds
      • Concept products not orderable

      MHS scores are not for sale

      Payment, sponsorship, advertising or commercial relationships do not purchase points, class, rank or favorable interpretation.

      No paid score increases
      No ranking changes for advertising
      Corrections require evidence
      No manufacturer veto over evidence-based results

      What MHS is not

      Not a value-for-money ranking

      Price is outside the MHS capability score.

      Not a popularity ranking

      Sales volume and brand recognition do not add points.

      Not a legal compliance certificate

      MHS does not replace product certification or applicable legal standards.

      Not a substitute for buyer priorities

      Budget, service access, payload and intended use may still matter greatly.

      Contact MHS

      Questions, corrections, partnership enquiries or feedback about the platform.

      © MHS – Mobile Habitat StandardAbout MHS
      MHS / Submit manufacturer data
      Manufacturer Submission

      Submit manufacturer data

      Provide official evidence to complete, correct or verify your model’s MHS record. MHS applies the same methodology to all manufacturers and does not negotiate scores.

      Use this form to
      • Confirm Factory-Max configuration
      • Provide evidence
      • Correct outdated data
      • Request Manufacturer Verified review
      • Prepare for MHS Verified assessment

      1. Manufacturer and model

      2. Submission purpose

      3. Evaluated configuration

      4. Official sources

      5. Technical evidence

      6. Manufacturer contact

      Prototype submission received. The live site would create an MHS review case and send a confirmation email.
      © MHS – Mobile Habitat StandardManufacturer Submission
      MHS / Campers / Manufacturer
      MANUFACTURER PROFILE

      Manufacturer

      Current removable-camper model line in the MHS market catalog.

      –
      Current models–market catalog
      Assessed–published MHS assessments
      Best score–public MHS scale
      Average score–assessed models only

      Current model line

      Select up to four models to compare.

      Loading manufacturer profile…
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      © MHS – Mobile Habitat StandardManufacturer profile
      MHS / Campers / Manufacturer / Hawk
      Hawk
      Four Wheel Campers · United States

      Hawk

      64.5
      – Hawk Factory-Max — current orderable slide-in configuration PUBLIC DATA CURRENT

      Final MHS v0.3.1 audit of the Four Wheel Campers Hawk slide-in Factory-Max configuration as of September 24, 2026. The audited configuration includes the front dinette with swivel table, dual lithium batteries, 500 W roof-mounted solar, Truma furnace with propane tanks/extended cabinet and 120 V shore power, Thetford Porta Potti 135, 8 ft side awning, flush-mount propane stove, rear floodlights, and rear powered roof vent fan. Confirmed credit is awarded for onboard battery power, at least 2 kWh nominal battery capacity, roof solar, 500 W solar capacity, vehicle charging, shore charging, user DC/AC infrastructure, autonomous heating, fresh-water tank, toilet, cooking, sink, sleeping, seating/table, storage, forced ventilation, exterior lighting, exterior functionality, core safety equipment, and basic and expanded energy monitoring. No credit is awarded for the optional inverter because the exact Factory-Max configuration does not publicly establish that the inverter is selected. No credit is awarded for hot water, air conditioning, active freeze protection, grey-water tank, shower, refrigerator, divided lighting, central-control, automation, water-level monitoring, environmental sensors, networking, WAN, remote access, or software services. The current manufacturer sources publish conflicting whole-module mass values: approximately 1,200 lb on the Hawk model page and 850 lb in the exact configurator. Under the MHS manufacturer-only mass rule and conflict handling, dry mass remains unresolved and is not used. Total awarded score: 23.5 points before any FD/mass adjustment.

      Find My Habitat
      CountryUnited States
      Global rank–among assessed
      Position–current MHS Rating
      Evidence–

      What this score means

      MHS measures maximum factory-delivered functional and technological capability. It is not a price, value-for-money, popularity or sales ranking.

      Assessment basis

      Public Data ratings award credit only for functions that can be confirmed from public manufacturer information. Not publicly confirmed means no credit. This does not mean the function is absent.

      Evaluated configuration

      ConfigurationHawk Factory-Max — current orderable slide-in configuration
      Assessment Level–
      Status–

      Public record

      This page shows aggregate public information only. Internal section scoring, individual criterion results and audit notes are not published.

      Verification framework Submit manufacturer data
      TECHNICAL PROFILE

      Specifications

      Manufacturer-published and MHS-verified model data. Unknown values remain unknown rather than being inferred.

      Dry mass544 kg
      Roofpopup
      Sleeps2–4
      Fresh water76 L
      Battery405 Ah · Lithium
      Solar500 W
      Inverter2,000 W
      HeatingTruma propane furnace system with propane tanks and extended cabinet; the current FWC owner-manual resource identifies the newest FWC furnace as the Truma VarioHeat family, but the Hawk configurator does not publish a precise furnace model number.
      Indoor showerNo
      ToiletOptional portable CleanWaste toilet or Thetford 135 Porta Potti.
      Air conditioningNo
      Starting priceUSD 29,495
      Pickup classFull-size
      Bed typeShort bed
      MountingSlide-in
      Grey waterNo onboard grey-water holding tank; current FWC manual specifies exterior drain/collection.
      EVIDENCE & FIELD USE

      Assessment evidence & real-world use

      Public assessment sources plus high-confidence Journey records linked to this exact camper model.

      Representative journeys
      ASSESSMENT EXPLAINER

      Why this score

      Publicly confirmed capabilities that help explain the published MHS assessment.

      This is a public explanation layer. Internal criterion weights, detailed scoring rules and audit notes are not published.

      Evidence & related records

      Verified technical references, documented journeys and relevant MHS news linked to this model.

      Technical

      0
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      Travel

      0
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      NEWS

      0
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      © MHS – Mobile Habitat StandardMHS Record