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Update: simpler plan selection and checkout

Compare plans in one window, unlock a complete project and enter your discount code at checkout.

Przemysław Paziewski

Founder of HeatAlgo

New features

Plan selection now opens in one full-screen window wherever you can unlock a report. Compare the free account, a single complete project and a subscription in one place.

Improvements

  • Choose Change plan in Billing to open the comparison. Your current plan, reports and orders stay in their familiar locations.
  • One purchase unlocks one complete project. There is no separate report quantity step.
  • Subscription periods, currency and savings appear alongside the plans. The checkout summary stays in place when you change currency.
  • If you newly opt in to HeatAlgo offers during checkout, you can receive 10% off your first purchase. For a subscription, this covers the first payment. If you already have an emailed code, enter it in the payment form.

Fixes

  • Fixed opening checkout with a welcome code.
  • You can dismiss a checkout error and try again.
  • The sidebar unlock button and plan comparison fit smaller screens better.

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Blog

See also

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Pipe spacing and loop length in underfloor heating - how to work it out properly

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No, an installed heat pump does not have to be replaced. From 1 January 2027 split air-to-water units up to 12 kW on GWP 150 or more leave the market.

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Why a heat pump sized "with a margin" cycles, loses seasonal efficiency and wears its compressor faster - and how to size one from a calculation, not a rule of thumb.

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Heat load and equipment sizing terms explained: U-value, lambda, thermal resistance, thermal bridges, n50, bivalent point, SCOP and the heating curve.

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A client's glossary: what the terms in your installer's form mean

Your installer is asking for floor plans, sections and a window schedule? Here is what each of those documents is, why it is needed and where to find it.

Releases

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Guides

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What a heat load calculation to EN 12831-1 is, what depends on it - from pump capacity to radiator supply temperature - and why a rule of thumb is not.

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The pump module now reads the project's heat load calculation directly - no imported copies, a per-room loss breakdown, and the full reasoning behind the selected capacity.

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Update: a new generation of underfloor heating drawings

Spiral and meanders drawn like a working design, consistent rules for any room shape, and editable loop nodes - what's new in HeatAlgo.

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Update: AI fills in project data from building documents

AI reads the building design, window schedule and energy certificate, and you approve the data into the heat load form - what's new in HeatAlgo.

Guides

How to use the underfloor heating module - a step-by-step guide

From a floor plan to a ready underfloor-heating loop layout with hydraulics - the complete guide to HeatAlgo's underfloor heating module.

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A smoother underfloor heating design workflow, in-app help, a help center and multiple storeys in one project - what's new in HeatAlgo.

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From creating the project to accepting the client's data - a simple step-by-step guide, screen by screen, no jargon.

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