Hi, this is my space for Heat Pump selection and analysis while I make progress to go low-carbon in my 1930s detatched house in the south of England, UK.
This is very much an ad-hoc selection of notes so far but you may find some of it useful…
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HeatPünk - Free web based heat-loss calculator
If you are looking to do your own heat-loss calculation to compare against 3rd party quotes or do some preliminary research. Then there are many options out there. I would recomend
HeatPünkhttps://heatpunk.co.uk/ is actually a sureprisingly simple tool. Being fully web-based its easy to get setup with a free acount and setup your floor plans in a visual and intuitive manner. I currently have no point of reference to compare but will be looking to get professional heat-loss survey in future to compare. Noteable though is there is much debate overAir Changes/hrwhich on its own will dramatically affect your heat-loss estimates. -
Are ASHP datasheets reliable?
This is an open question of mine, questions the datasheet SCOP figures for many products.
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Comparison of 5Kw Heat Pumps
This is a comparison table of all 2024-2025 heat-pump datasheet figures for make+models I am aware of.