Heat Pumps ~ Get Your Facts Straight!

Roger looks at how heat pumps are versatile systems for heating and cooling, offering energy-efficient alternatives to traditional HVAC systems. They operate by transferring heat, rather than generating it, utilizing a few distinct types:

Air-Source Heat Pumps: The most common type, air-source heat pumps extract heat from outdoor air to heat homes in winter and reverse the process to cool in summer.

Ground-Source Heat Pumps: These utilize the earth's stable temperature as a heat source or sink, offering high efficiency, particularly in extreme climates.

Water-Source Heat Pumps: These draw heat from a nearby water source, like a lake or well, offering efficient heating and cooling, especially in areas with abundant water resources.

Absorption Heat Pumps: Powered by natural gas, solar energy, or geothermal heated water, these are an alternative in areas where electricity is costly or less available.

Each type offers unique benefits, catering to different environmental and energy requirements, making heat pumps a flexible solution for diverse heating and cooling needs.

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#heatpump #airsourceheatpump #homeheating

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[ooheaven]

I am convinced Roger could do a video explaining the process of paint drying and still make it essential viewing. Keep them coming!

[Exposurelife]

I like a good telling off from Roger even though I haven't done anything wrong.

[boyasaka]

I’ve just paid 1700 quid for a brand new Worcester Bosch boiler to be supplied and fitted
And my last one lasted 20 years, so I’ll happily pay the £130 a month I pay for gas and electric,
Instead of forking out 15 grand on a heat pump, that won’t heat my house as warm as my combi

[nigelbullock]

As a retired Surveyor I can recall a ground source heat pump installation in an Academy we built in the Telford area. Basically it didn't work 2000m of trench and pipework for nothing. It was thought the pipework was faulty but that was never proved. All classrooms were issued with temporary heating for the winter months. Great!

[syrusk]

Mini split is the way to go I reckon. They're so so much cheaper and easier to install. I live in the UK but I used to live in Australia where I had several. They're great.

[surreycountyfiddle]

Studies show that by collecting the hot gasses from Roger's Rants, huge savings could be made countrywide!

[seantaylor]

I always enjoy the rants about how wonderful air/ground source pumps are. Just putting another log on the stove always feels good.

[johnburns]

The ground temperature can be pretty constant depending on the depth and location. Ground near the sea has different temperatures than ground way inland as the temperature of the sea greatly affects the adjacent land. As heat is extracted the ground around the heat pump's borehole pipes will get cooler. The sun wil re-heat the ground but mainly by the convection of the surrounding warmer ground. If you extract too much heat the ground can become _tundra._

This tundra will be reheated by the surrounding ground during summer. Some buildings in the USA use this tundra to cool the building in summer, reheating the ground.

Some systems use two boreholes, say one at the front and one at the rear of the house. By alternating you can allow the ground to reheat one borehole while extracting heat from the other.

Far more efficient than air sourced.

[lnostdal]

I went with air-to-air. Way better value for money on purchase - and efficiency is much, much better too! Where I live I benefit from the cooling and de-humidification during summer too. To heat or cool several rooms I've just banged some holes in the walls and put in vents; no fancy pipes, radiators etc needed -- just simple ventilation fans. Later I'll add an heat/energy exchanger - for fresh air.

oh, and in the summer - my emissions are 0 because i have solar

[jfro]

I live in the countryside in a small hamlet. We are all on oil. No gas here. 1964 build, bungalow. A year or two after we moved in we had it cavity insulated and loft insulated (around 2008), windows and doors all double glazed, it halved our annual heating bill and I spend about £1000 a year on oil. Now. Thermostat set at 18 deg. In the summer the boiler is hardly on because it just does hot water, in winter it comes in & out maintaining the CH temperature. It works extremely well and I am more than happy with it. In new build homes I can see why heat pumps may be economically viable but in older homes never designed for them I’m not so sure, even if you can afford the cost. There’s a lot of greenwashing going on. Caveat emptor.

[robandchristheateam]

Brilliant Mr Bisby. You carry a big consumer message for common sense. POW!!!

[marko]

Two thirds of houses in Norway use heat pumps and that's in temperatures of -25 degC. Good clear video, thanks Roger.

[markbarton]

I have it on good authority for the last 5 years someone has installed / run a ground source heat pump with the source being a solar hot water panel, . Apparently runs like a dream.

[passais]

Thanks. I was amongst the people calling a ground based system geothermal so I learned something today.

[MrWokyman]

Can we all chip in for some new pens for Roger?

[scoobyflew]

My best friend is high up in the HVAC industry and 15 years go they put ground source head pumps into 5 terrace new build houses.
All was fine in the summer, but in winter the middle house's "numbers" were way off, they surveyed the ground and found the garden in the middle house had turned to perma-frost!
The ground never thawed during the winter and the pump could not extract any heat!
Trial was cancelled!

[neilfox]

Roger, am I missing something here, you can pay £3k for a new efficient gas boiler that fits on the kitchen wall, is warranted for 10 years and costs about £80 a year to service. The alternative is having a heat pump journey with surveys and remedial work that requires a large spare room or garage to store all this equipment and an outside unit. You then wait and hopefully it all works. Not to mention the installation and servicing costs. All this so instead of burning gas at home efficiently you burn it at a power station to convert the energy into electricity that costs four times more per unit than gas.

[flashback]

If you are luckily enough to have a river at the bottom of your garden, this is the best source of energy for a heat pump.

[LeighPage-vp]

These are great for the UK, wish I had had one when I lived there. Yes, I know this is about the UK, but in many US states you simply couldn't get away with a heating only system, fantastic insulation or not you would still need cooling.

[effervescence]

So now it's mostly public knowledge I can finally tell you that Durants Village is the place with many issues with the heat pumps, from pre-updated building regs insulation to the Mitsubishi heat pumps being put into out houses (think the old terraced house toilets with louvered doors) freezing up due to poor air circulation and a build up on condensation. Meaning they're on defrost for quite awhile in winter and not cheap to run, costing around 2.5x what you'd expect from a normal home. Worst bit is it's sheltered accommodation for older/vulnerable people so it's basically like taking advantage of them.