Email contact@heatnetdesigner.co.uk for questions, bug reports, calculation queries and account requests.
The calculation methods, sources and known limits are set out in the in-app Help tab and on the validation page, which publishes the case studies the engine is checked against. Results are for feasibility and design support and must be verified by a qualified engineer.
On the Account page you can download all your data in one file, delete your account, and turn on two-factor sign-in. Each project can also be exported as .json from the project menu. If you have lost access to your authenticator app, email us from the address you sign in with. See the Privacy Policy for the processors involved and how long data is kept, and the Terms & Conditions.