We used to do the same as the person interviewed in this video, i.e. use the heat pump like a boiler, off at night, on in the early morning for a few hours, off until 4pm then on again until midnight. We recently changed this and moved to 24 hours a day operation and that has seen the heat pump's efficiency increase massively and our overall heating costs have actually reduced! We run 45c flow temps to triple radiators in most of the house, with underfloor heating in the cellars. The settings on a heat pump system are critical and we've improved our COP from 2.5 to over 3.0 simply by changing the way we run the system, with no reduction in our interior room temperatures. We have a Samsung EHS Mono 16kw heat pump, that's been installed and working flawlessly for 6 years.
Interesting, thanks for sharing David. If you have a moment, can you please share your experience with other homeowners because I think that they’ll find it helpful: renewableheatinghub.co.uk/forums
Interesting video, nice to hear about your positive experience with a heat pump. I live in a part of Canada that has freezing cold winters along with hot humid summers. Hot water heating is about 5% of the market, the majority of homes are heated using a forced warm air furnace via a duct system. I recently removed my gas furnace and installed a Mitsubishi heat pump that works with a matched air handler fitted with 8KW of backup heat. I heard someone say the outside design temperature for London is 3C, where I live it’s -26C. The Mitsubishi heat pump is called a cold climate hyper heat system and continues to deliver useful heat down to -30C. We had one day at-34C back in January, had to rely on backup because the Mitsubishi turns off at -30C. And I’ll get the benefit of cooling this summer when high humidity becomes an issue here mostly during July. Very pleased with Mitsubishi so far, came highly recommended but at a price. Cost me $19K Canadian, government is offering rebates but it’s slow in coming. Cheers!
What’s the difference between a High temperature heat pump and a heat Pump? Are they not just one and the same, with high temp running making it less efficient and reducing the SCoP? Esteemed wisdom (HeatGeek) is to go low and slow on all the time. I see engineers on forums suggesting “High Temperature Heat Pump” is just marketing spin, and is actually a red flag, which should be avoided? Happy to stand corrected if you can clarify. My understanding is that correctly sized system based on heat loss calculations is what is critical?
@@RenewableHeatingHub so low and slow is better. "High temperature heat pump" just seems to be a dodgy marketing gimmick. Go low and slow, maximise SCOP, save money, and stay warm.
Off the point but why do middle-class men make out they have to answer to and be deferential to the ‘the Mrs’. It’s all very Les Dawson. I don’t think for one minute there was any question of divorce when the boiler broke down. It’s actually pretty insulting.
We used to do the same as the person interviewed in this video, i.e. use the heat pump like a boiler, off at night, on in the early morning for a few hours, off until 4pm then on again until midnight. We recently changed this and moved to 24 hours a day operation and that has seen the heat pump's efficiency increase massively and our overall heating costs have actually reduced! We run 45c flow temps to triple radiators in most of the house, with underfloor heating in the cellars. The settings on a heat pump system are critical and we've improved our COP from 2.5 to over 3.0 simply by changing the way we run the system, with no reduction in our interior room temperatures. We have a Samsung EHS Mono 16kw heat pump, that's been installed and working flawlessly for 6 years.
Interesting, thanks for sharing David. If you have a moment, can you please share your experience with other homeowners because I think that they’ll find it helpful: renewableheatinghub.co.uk/forums
tell us more. what is ambient temp ?
Interesting video, nice to hear about your positive experience with a heat pump. I live in a part of Canada that has freezing cold winters along with hot humid summers. Hot water heating is about 5% of the market, the majority of homes are heated using a forced warm air furnace via a duct system. I recently removed my gas furnace and installed a Mitsubishi heat pump that works with a matched air handler fitted with 8KW of backup heat. I heard someone say the outside design temperature for London is 3C, where I live it’s -26C. The Mitsubishi heat pump is called a cold climate hyper heat system and continues to deliver useful heat down to -30C. We had one day at-34C back in January, had to rely on backup because the Mitsubishi turns off at -30C. And I’ll get the benefit of cooling this summer when high humidity becomes an issue here mostly during July. Very pleased with Mitsubishi so far, came highly recommended but at a price. Cost me $19K Canadian, government is offering rebates but it’s slow in coming. Cheers!
Great video, thanks for sharing the real life experiences.
Really interesting! Thanks!
Thanks for the feedback Peter. Glad you found the interview interesting.
What’s the difference between a High temperature heat pump and a heat
Pump? Are they not just one and the same, with high temp running making it less efficient and reducing the SCoP? Esteemed wisdom (HeatGeek) is to go low and slow on all the time. I see engineers on forums suggesting “High Temperature Heat Pump” is just marketing spin, and is actually a red flag, which should be avoided? Happy to stand corrected if you can clarify. My understanding is that correctly sized system based on heat loss calculations is what is critical?
This article explains things well: renewableheatinghub.co.uk/rethinking-high-temperature-heat-pumps
@@RenewableHeatingHub so low and slow is better. "High temperature heat pump" just seems to be a dodgy marketing gimmick. Go low and slow, maximise SCOP, save money, and stay warm.
I wouldn't disagree with that.
Good one thanks.👍
Thanks Norman. Appreciate the comments as always. Best wishes for 2022.
Off the point but why do middle-class men make out they have to answer to and be deferential to the ‘the Mrs’. It’s all very Les Dawson. I don’t think for one minute there was any question of divorce when the boiler broke down. It’s actually pretty insulting.
You haven't met his Mrs, then.
It’s life buddy.Simple as that.