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Model. Monitor. Manage

The energy
efficiency
tool

3D heat flow modelling, air quality monitoring, energy management.

Verified email only · No card required · Choose access to keep editing

INSIDE recoheat.appExplore an example home
A two-storey house model from recoheat.app
Explore the roomsExample temperatures · drag to rotate, scroll or pinch to zoom

BETTER TOGETHER

A physical Recoheat. App access included.

Customer plan access at no extra charge with a verified Recoheat purchase.

TWO PARTS. ONE CONNECTED HOME.

First, understand your space.
Then, how it works for you.

Bring your home’s layout, indoor conditions and heating costs into the same picture.

01 / MODEL YOUR HOME

Explore the possibilities.

3D home and heat flow modelling

Choose a property template or build from scratch. Add rooms, openings and heat sources in 2D, then explore your home in 3D.

  • See how warmth may move between rooms.
  • Compare heat sources, fuel choices and heating scenarios.
  • Model running costs using your fuel prices and heating settings.
Start with your home model ↗
02 / MONITOR & MANAGE

Understand everyday performance.

Indoor air quality monitoring and heating efficiency

AirGradient cloud linking and Home Assistant setup are available where supported. Metered plug collection and controls are still in pilot and need a real paired device; live year-over-year device history has not yet been verified.

Explore device setup ↗

HOME ASSISTANT INTEGRATION

Your devices.
A more connected picture.

AirGradient cloud linking and Home Assistant setup are available where supported. Metered plug collection and controls are still in pilot and need a real paired device; live year-over-year device history has not yet been verified.

Choose a device setup path ↗

FINANCIAL MODELLING & EFFICIENCY

Understand the cost.
Make each change count.

Model heating costs from fuel prices, heat output and efficiency assumptions. Compare scenarios before changing your home. Compatible power and energy readings may add context once a supported device is connected.

These are model estimates, not measured energy consumption. Metered plug collection and controls remain in pilot and need a real paired device.

RECOHEAT.APP

What you can use today

Build a home from a template, edit rooms, and explore modelled heat flow and heating costs. Save and compare your own modelled runs in Insights.

Connected data shows eligible account-linked readings by home, device and year. Owners can download their data. Pro and Enterprise can view client readings only with an active per-home grant and source consent.

AirGradient cloud linking and Home Assistant setup are available where supported. Metered plug collection and controls are still in pilot and need a real paired device; live year-over-year device history has not yet been verified.

YOUR HARDWARE. AIRGRADIENT MONITORING.

Choose your monitors.
Connect your air-quality data.

Connect a supported AirGradient monitor through your AirGradient cloud account. Other compatible monitors may use your Home Assistant installation or a supported Recoheat setup path; AirGradient hardware is optional.

A global community contributing real-world air-quality data to help understand and improve the air we breathe.

People with AirGradient monitors in homes and businesses around the world contribute to this shared initiative. recoheat.app brings that community-driven approach to understanding the air in your own home.

Want hardware with independently tested performance? Choose an AirGradient monitor with published accuracy specifications and testing evidence. Other compatible monitors may use a supported Home Assistant integration; the quality of their readings depends on the hardware you select. Using AirGradient’s monitoring system does not itself certify a third-party sensor.

Explore AirGradient’s testing and standards ↗
OPTIONAL AIRGRADIENT HARDWARE

Choose verified performance

The assembled AirGradient ONE is RESET-accredited. Accreditation applies to the specified monitor, rather than to recoheat.app or every sensor configuration.

RESEARCH AT SCALE

Selected for SAMHE

AirGradient supplied monitors for the UK SAMHE project, which it describes as the world’s largest study of classroom air quality.

Read about the school research ↗
TRANSPARENT DATA QUALITY

Tested. Documented. Open.

Published accuracy specifications and independent evaluations help you understand the readings. Measurement quality depends on sensor choice, placement, calibration and operating conditions.

FOR PROFESSIONALS & THE WIDER INDUSTRY

Better measurements.
A stronger case
for the industry.

High-quality monitoring data helps professionals demonstrate real-world performance—and challenge research or modelling that does not reflect it.

Build an evidence base for informed discussion of air quality, heating efficiency and the industry’s achievements. Compare model assumptions with measured conditions, examine competing claims and show where improvements are supported by the data.

Work across customer homes and reuse property templates. Share an editable copy of a home’s design and objects with a customer or installer; device connections and readings stay with the original home.

Explore Pro and Enterprise ↗

01 / MEASUREMENT QUALITY

Start with credible readings.

Use supported AirGradient cloud readings, or bring in compatible monitor readings through an existing Home Assistant set-up. Choose AirGradient hardware with documented independent testing when verified sensor performance matters.

02 / SCRUTINISE THE MODEL

Put assumptions to the test.

Use measured conditions alongside modelling to question assumptions, identify gaps and support a fair assessment of heating technologies. Consider sensor accuracy, placement and operating conditions when interpreting the results.

03 / DEMONSTRATE PROGRESS

Let the evidence make the case.

Use design copies for customer discussions. Enterprise aggregate insights can help identify patterns across participating homes, subject to permissions and privacy thresholds.

A credible case includes uncertainty and findings that challenge expectations. Indoor readings provide valuable context; they do not, on their own, establish emissions, health effects or the cause of a change.

BUILD FIRST. DECIDE WHEN YOU’RE READY.

Try your home in recoheat.app.

Register and verify your email to open a free session. Build a home and explore the modelling tools before purchasing.

Your home remains in your account; you can edit it for 24 hours during Free preview. After that, editing pauses until access is active. You can still sign in and download your data.

No payment details required.

A PLAN FOR YOUR PERSPECTIVE

Start with your home.
Grow from there.

Start free. Keep editing your home with Customer for £12 a year. Choose monthly or annual billing for Pro and Enterprise.

TRY IT FOR YOURSELF

Free

Build a home and explore the possibilities.

£0

Verified email only. No card required.

  • Open a free modelling session
  • Build and explore a home
  • Try the modelling tools
Choose access to keep editing.

Your home remains in your account; you can edit it for 24 hours during Free preview. After that, editing pauses until access is active. You can still sign in and download your data.

FOR PROFESSIONALS

Pro

Build an evidence base for every home.

£19/ month

Billed monthly

  • Everything in Customer
  • Unlimited homes
  • Reusable property templates
  • Create and manage Customer accounts
  • Design-only customer collaboration

FOR ORGANISATIONS

Enterprise

Insight across your business

From £79/ month

Billed monthly

  • Everything in Pro
  • Manage Customer and Pro accounts
  • Coordinate portfolio relationships
  • Permission-scoped portfolio aggregates with privacy thresholds
  • Permission-based collaboration

Insights are subject to privacy thresholds.

Pro: £19/month or £190/year. Enterprise: from £79/month or £790/year. Customer: £12/year. Prices include VAT.

03

Measure your rooms

Check your phone’s measuring tools, test accuracy and review room dimensions before saving. Native iPhone LiDAR scanning is in preparation; Android uses separate measuring tools or manual measurements.

Measure your rooms ↗ (English guide)
04

Heat, energy and air dashboards

Explore heat flow and estimated heating energy alongside readings from connected air-quality monitors. Pro users see averages across at least two customer homes they have permission to manage.

Heat, energy and air dashboards ↗ (English guide)

AT HOME. ON SITE. ON THE GO.

Your home, within reach.

Use recoheat.app in your browser today.

Open the web app ↗
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Desktop

Open the web app

Open the web app ↗
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Android

Google Play

Google Play ↗
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iPhone & iPad

TestFlight beta

Beta details

A LITTLE HELP GETTING STARTED

Good questions.
Clear answers.

Read the recoheat.app guide ↗
What can I do for free?

Your home remains in your account; you can edit it for 24 hours during Free preview. After that, editing pauses until access is active. You can still sign in and download your data.

Do my monitors have to be AirGradient?

No. Supported AirGradient monitors can connect through their cloud account. Other compatible monitors can use your Home Assistant installation or a supported Recoheat setup path. AirGradient’s published testing applies to its hardware, not to other manufacturers’ monitors.

Do I need sensors to get started?

No. Start by modelling your home and exploring scenarios. Connect supported sensors later if you want to bring measured indoor conditions into your model.

Can I connect existing smart devices?

AirGradient cloud linking and Home Assistant setup are available where supported. Metered plug collection and controls are still in pilot and need a real paired device; live year-over-year device history has not yet been verified.

What happens when I share a home?

The recipient gets a separate, editable copy of the house design and its objects. Device connections, readings, credentials and controls stay with the original home. The recipient can connect their own devices. A Customer with an existing home must explicitly agree before that home is archived and replaced by the copy.

How design-only sharing works ↗
How detailed is the financial modelling?

Compare estimated heating costs using fuel prices, heating settings and efficiency assumptions. Update these inputs to reflect your own circumstances. Actual costs depend on usage, weather, tariffs and the accuracy of the model and measurements.

Can I rely on the model for certified calculations?

recoheat.app is a modelling and decision-support tool. It is not a safety system, an energy certificate or a substitute for a heating engineer’s calculations.

How do I manage or delete my account?

Sign in to download your data or request account deletion. Device-linked cleanup remains under verification.

Go to the app ↗