Give your users the tools to explore low-carbon tech
Small tools that answer households’ questions about heat pumps, solar and batteries, for installers, councils, housing associations and community energy groups to put on their own websites. Paste one line of code – no developer needed. Everything on this page is a working demo, and a free account lets you brand a tool and put it live.
The tools
Grouped by the question each one helps a household answer.
Is it right for my home?
Savings calculator
Sizes heat pumps, solar, and batteries for a specific UK property, then estimates costs, savings, and carbon reduction.
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Boiler escape plan
Helps homeowners plan a boiler replacement before it breaks down, with a personalised readiness plan and calendar reminders. Covers gas, oil and LPG.
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Radiator check
Which radiators would need changing for a heat pump, and which are a straight swap – from the radiator type in each room, no measuring.
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How do I get it done?
Grant finder
Enter a postcode and answer four short questions to see which UK grants and funding schemes a household could get.
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Installer finder
Postcode search for nearby renewable energy installers, filtered by technology, with contact details and MCS verification links.
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What is it like to live with?
Heat pump visualiser
Preview a life-size heat pump in the garden using augmented reality on a phone or tablet. No app download.
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Sound simulator
Play a real heat pump recording and measure the decibel level from anywhere around the home using the phone microphone.
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3D house tour
A 3D cutaway of an all-electric home: heat pump, hot water, radiators, solar, a battery, car charging and cooking, with a guided tour of how it fits together.
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Watt's House
The same all-electric house, explored with Watt the cat. Send him round the house and whatever he sits beside is explained.
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More on the way
We build new tools based on what embedders ask for. If something your users need is missing, tell us →
How it works
Create an account
Sign up for free.
Pick your widget
Choose whichever of the tools above fits your site.
Personalise it
Set your brand colours and company name so it looks like part of your site.
Paste one line of code
Copy the embed code from your dashboard and paste it into any web page.
Live demo
Savings calculator
Enter a postcode or property details below. The calculator sizes heat pumps, solar panels, and batteries for the specific property, then estimates costs, savings, and carbon reduction.
Embed this on your website
Choose the colours and which technologies it covers, then paste one line of code into any page.
What's included
Interactive tools
Calculators, visualisers and simulators: type in a postcode, listen to a recording, walk through a 3D house.
Built on public data
Calculations start from the property’s EPC record and national energy-use figures, adjusted for region and size. Grant details are checked against official sources.
Custom branding
Set your own colours and company name so the widget sits naturally in your site. Full white-label is available on request.
One line of code
Paste it into WordPress, Squarespace, Wix or plain HTML, and it resizes itself to fit. Sites that block scripts can use an iframe instead.