Heat Pumps: anyone have one/thought about it?

theone8181 said:
I think any form of terraced is going to be difficult to do it.
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There are some roof mounted ones as well.
In effect the remove some tiles, and embed it in the roof. More experimental really than mainstream right now I believe but these are the sorts of thing that will come with more demand.

I saw stuff about the NL in regards them but they are apparently testing in the UK

www.coolingpost.com

Roof-mounted heat pumps on trial - Cooling Post

UK: Bellway, one of the UK’s largest housebuilders, is trialling a roof-mounted air-source heat pump, developed in the Netherlands, at an experimental...Read More...
www.coolingpost.com www.coolingpost.com
 
robj20 said:
You can get cylinders around 470mm diameter.

I'm going to wait so many questions they couldn't answer when I asked them to phone me.

Location would be an issue for us as well it could go at the front of the house but that would be ugly as hell, at the back anywhere with space would be right under a window.
I don't want it on the floor either as that means when we relay the patio it would be in the way.

I'm going to keep an eye on the efficiency of them, they only going to get better I imagine. I'll get my own cylinder at some point and if there is no grants at the time I'll fit the whole thing myself save plenty that way.
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You CAN get cylinders that are different but right now my gut feel is its a hard sell to get them to do so, we will see :)

I am not sure we will see much change in efficiency. Its pretty well known tech and there is only so far the efficiency can go.

The previous reply I just made reminded me why I was holding off.
I can put a ASHP at the front or rear of my property, cannot do sides as one is too close to neighbours and other is my access so its too big to be down there.
Like many I would imagine the front is far from ideal from a looks perspective and the rear would be under a window so again from from ideal.

I am going to hold out I think and hope that roof mounted takes off. Would be ideal for me that way.
 
Tbh, I'd rather have it out the front than the back near where I'm sitting out in the garden. I don't care much what the front looks like, and it's mostly obscured by shrubs from the road.
Roof mounted could make a lot of sense for many properties.
 
When you say roof mounted you mean on the roof or in the loft with ducting.
That would be ideal for me as well.
I think what needs to happen is electric prices to go way down, or what's now likely gas prices to go way up.
 
robj20 said:
When you say roof mounted you mean on the roof or in the loft with ducting.
That would be ideal for me as well.
I think what needs to happen is electric prices to go way down, or what's now likely gas prices to go way up.
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Does the link I put in post 322 not show up?

As I said I had seen them in the NL, but the link was to trials taking place in the UK.

They are sunk into the roof in effect. The majority of the unit is inside.
There is a 15cm or so high part that sits above the roof line. Its where the air is sucked from and blown back out.
 
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dirtychinchilla said:
You need a whole load of free air around an ASHP for it to work. They can't go in lofts.
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They also weigh a lot and you’ll never get one up there. Those roof mounted units are craned in. They make some sense in a new build but would be very expensive to retrofit.

You’ll probably get planning permission for putting one on a boundary these days because they are basically silent. Under a window is also fine unless it’s particularly low or it’s a big unit.
 
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b0rn2sk8 said:
They also weigh a lot and you’ll never get one up there. Those roof mounted units are craned in. They make some sense in a new build but would be very expensive to retrofit.

You’ll probably get planning permission for putting one on a boundary these days because they are basically silent. Under a window is also fine unless it’s particularly low or it’s a big unit.
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Noise would be my biggest worry with a high mounted one, don't want to listen to whirring fans while trying to sleep.
 
theone8181 said:
Noise would be my biggest worry with a high mounted one, don't want to listen to whirring fans while trying to sleep.
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Potentially true. My concern would be say 5+ years in. Once things have had a chance to wear a bit.
Saying that I am always surprised when the heating starts up how much noise it makes. A few weeks later and you hardly notice.

I used to live somewhere where the Felixstowe freight line ran at the bottom of my garden. After a while you dont even notice it. Visitors were almost OMG how do you sleep!?

Same now. I am close to the flight path of 2x US airbases. Very very rarely wake me up. Can be a bit noisy as your dropping off.

We are really good at in effect blocking out common noises.
 
In its defence, ‘effective’ doesn’t mean efficient, however i fundamentally disagree with the point around not having the knowledge to insulate old houses. That is nonsense, the issue is no one wants to pay to do any of the work properly, the insulation point is not even required in many cases, you just need bigger heat pumps and radiators compared to a new build. That’s already the case for a gas boiler….
 
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b0rn2sk8 said:
In its defence, ‘effective’ doesn’t mean efficient, however i fundamentally disagree with the point around not having the knowledge to insulate old houses. That is nonsense, the issue is no one wants to pay to do any of the work properly, the insulation point is not even required in many cases, you just need bigger heat pumps and radiators compared to a new build. That’s already the case for a gas boiler….
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It's just old Tories moaning about something they know nothing about because it's change. I realise effective doesn't mean efficient, but they are effective. Much like literally anything, you need to operate them properly. The previous generation is responsible for a plethora of energy sins, and they don't want to have to deal with them.

Did you notice the poll? 15% of those polled want a heat pump, 85% don't. Really? If they moved into a new house and the heat pump was there, they'd probably not even notice it.
 
They probably would notice it because it seems to be a common trend for people to blast their heating system at a very high power output for short periods under the impression that it is economical to run for short periods ignoring that it's probably about a 30kw system. A lot of people simply wont accept running a low output system running for a longer period. At this point a huge number of tabloid readers are completely brainwashed against heat pumps after reading the near daily heat pump bashing articles no doubt backed by the gas industry.
 
Clarkey said:
They probably would notice it because it seems to be a common trend for people to blast their heating system at a very high power output for short periods under the impression that it is economical to run for short periods ignoring that it's probably about a 30kw system. A lot of people simply wont accept running a low output system running for a longer period. At this point a huge number of tabloid readers are completely brainwashed against heat pumps after reading the near daily heat pump bashing articles no doubt backed by the gas industry.
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O come on, Heat pump is not the be all end all. it has its flaws and a property owner needs to assess the current property to see if it makes sense to install one.

Electric prices are a all time high so there's that!
 
dirtychinchilla said:
This article seems like rubbish.

www.telegraph.co.uk

The heat pumps farce has reached a new low

The Government is backing down on net zero, but doubling down on fining manufacturers that sell too many gas boilers
www.telegraph.co.uk www.telegraph.co.uk

"The real problem with heat pumps is that they are not yet effective enough"

yes...only 100%+ efficient!
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Ist efficient once you have sorted out having radiator upgrades if needed, solar panel to help a bit with the bill, actual room outside to house it in and decent insulation.
 
jonneymendoza said:
Ist efficient once you have sorted out having radiator upgrades if needed, solar panel to help a bit with the bill, actual room outside to house it in and decent insulation.
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Solar panels and heat pump? Why you still pushing that rubbish after being told you're wrong like 500 times already?

Insulation is the big one here and as the article says, working out how to do it properly on aging housing is a challenge.
 
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