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Last seen: Aug 3, 2026
@morganr I agree the table is quite confusing. I'm not sure if it is intended to cover a range of heat pumps rather than just one model. The first ...
@morganr Well you have certainly done due diligence 😁. I think its likely that your 4kw estimate is about right but a 6kw model shouldn't be g...
@morganr my understanding of the HG table is that it indicates how much heat can be delivered through that pipe size at a flow 0.9 mps. This is the st...
@morganr Hi. Welcome to the forum. I've used 15mm plastic to all my radiators and have calculated the correct power rates based on actual internal d...
So assuming 45p per liter and 7 kWh per liter thats about 19,000 kWh per year for heating. Does that match with your EPC, it should state it as mine d...
@rocky-a Hi Rocky. Welcome to the forum. Just to clarify, any house can be heated with a heat pump, despite some of the stories you might hear that...
@pooneil thanks for the feedback. Good to know it worked out in the end and Homely functions well.
@jamespa That was my feeling, but I have seen it argued that oversizing does not cause significant inefficiency, so I erred on the diplomatic side 🙂
@johnnyb I believe the jury is hung as to whether an oversized heat pump is actually less efficient. I think most people though agree excessive cyclin...
@johnnyb Using the immersion wont improve the efficiency but if you can get cheap rate electricity it should be no more expensive and may even be chea...
@jamespa That's interesting James. Two other things occurred to me after my last post.The first is that all DHW cylinders include an immersion heater ...
The point about needing a legionella cycle at all and how hot the water needs to be if you use one. Its an interesting point that if people cannot a...
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