Air to Air ( ASHP) Home heating and cooling
Discussion
I am some way into investigating it, booked a survey now via Daikin. What I would really like to hear from, is anyone who has air to air in their house . Clearly lots of internet chat and material but it would be good to hear from some people who use it . I have read testimonials on the various sites but clearly they may not be entirely without bias .
Large 1970 Bungalow lots of space and pretty good wet central heating . Five year old boiler .
Like many with pipes in solid floors I think its only a mater of time before the inevitable . Buried 50 plus years ago in screed. So I don't want to go wet , I don't want all the floors dug up and I don't want surface pipes . I have lived in a property overseas with the wall units for both hot and cold and they work well and warm a room vastly quicker than the CH.
Air to air with full solar that I would install as well , is where my mind is going . Its a big investment albeit we will stay here until there is one of us . Hopefully have a couple of decades yet . If she goes first Margot Robbie will move in and I know she likes a warm house
I would really like to hear from anyone who has air to air in their house please.
Large 1970 Bungalow lots of space and pretty good wet central heating . Five year old boiler .
Like many with pipes in solid floors I think its only a mater of time before the inevitable . Buried 50 plus years ago in screed. So I don't want to go wet , I don't want all the floors dug up and I don't want surface pipes . I have lived in a property overseas with the wall units for both hot and cold and they work well and warm a room vastly quicker than the CH.
Air to air with full solar that I would install as well , is where my mind is going . Its a big investment albeit we will stay here until there is one of us . Hopefully have a couple of decades yet . If she goes first Margot Robbie will move in and I know she likes a warm house
I would really like to hear from anyone who has air to air in their house please.
ATG said:
(been watching skill builder?)
Having Googled your reply,that was a mystery to me. I have watched a bit of YouTube stuff, but I have never watched that fellow. I will watch that video tonight. On a quick look I think that's one of the testimonials I have seen already on the Daiken site .However thanks for finding it .
cliffords said:
ATG said:
(been watching skill builder?)
Having Googled your reply,that was a mystery to me. I have watched a bit of YouTube stuff, but I have never watched that fellow. I will watch that video tonight. On a quick look I think that's one of the testimonials I have seen already on the Daiken site .However thanks for finding it .
I've got A2A that I use primarily for cooling, but sometimes heat as well. It's great, does what it says on the tin and probably more effective in terms of COP than an A2W system.
Only observation is that it is a little audible when the outside unit runs a defrost cycle as it reverses the flow of gas quickly and this makes a noise in the internal units, but no biggie really.
Daikin are the ones to go for as they have a unit which can do A2A heat/cooling but also heat the hot water tank, but I suspect you already know that and that'll be why you're asking them!
Only observation is that it is a little audible when the outside unit runs a defrost cycle as it reverses the flow of gas quickly and this makes a noise in the internal units, but no biggie really.
Daikin are the ones to go for as they have a unit which can do A2A heat/cooling but also heat the hot water tank, but I suspect you already know that and that'll be why you're asking them!
cliffords said:
I am some way into investigating it, booked a survey now via Daikin. What I would really like to hear from, is anyone who has air to air in their house . Clearly lots of internet chat and material but it would be good to hear from some people who use it . I have read testimonials on the various sites but clearly they may not be entirely without bias .
Large 1970 Bungalow lots of space and pretty good wet central heating . Five year old boiler .
Like many with pipes in solid floors I think its only a mater of time before the inevitable . Buried 50 plus years ago in screed. So I don't want to go wet , I don't want all the floors dug up and I don't want surface pipes . I have lived in a property overseas with the wall units for both hot and cold and they work well and warm a room vastly quicker than the CH.
Air to air with full solar that I would install as well , is where my mind is going . Its a big investment albeit we will stay here until there is one of us . Hopefully have a couple of decades yet . If she goes first Margot Robbie will move in and I know she likes a warm house
I would really like to hear from anyone who has air to air in their house please.
My father installed aircon around 25 years ago on their barn conversion. They retained the boiler and central heating which meant not needing tons of ugly units in all the rooms or where the piping was going to be messy. Worked very well and resulted in lower bills. Large 1970 Bungalow lots of space and pretty good wet central heating . Five year old boiler .
Like many with pipes in solid floors I think its only a mater of time before the inevitable . Buried 50 plus years ago in screed. So I don't want to go wet , I don't want all the floors dug up and I don't want surface pipes . I have lived in a property overseas with the wall units for both hot and cold and they work well and warm a room vastly quicker than the CH.
Air to air with full solar that I would install as well , is where my mind is going . Its a big investment albeit we will stay here until there is one of us . Hopefully have a couple of decades yet . If she goes first Margot Robbie will move in and I know she likes a warm house
I would really like to hear from anyone who has air to air in their house please.
The best form of heating by far is wet underfloor, with a decent amount of thermal mass.
Next is radiators.
Worst is wafting warm air around at head level - and with a heat pump there is a serious problem with really cold temperatures and no solar gain.
By all means have a single unit in the main living area, very handy for cooling and useful for raising the air temperature a few degrees. Such units are useless on a cold winters evening.
Don't forget, humans are radiant beings, the mean radiant temperature of a room is more important than the air temperature - and moving air around is draughty and has a cooling effect.
Air-to-air i.e. simple air conditioning is getting more common: search on the forum for experience with "mini split" systems - a lot of us installed them over the last few years.
They work pretty well. Efficiencies seem to get better with newer models. They seem expensive when it's really cold, but fortunately that's rare. Unfortunately we live in a damp climate, so they can freeze up (requiring heat to defrost) much more than people living in minus-20 in Norway where it's really dry and these excel.
They work pretty well. Efficiencies seem to get better with newer models. They seem expensive when it's really cold, but fortunately that's rare. Unfortunately we live in a damp climate, so they can freeze up (requiring heat to defrost) much more than people living in minus-20 in Norway where it's really dry and these excel.
im fairly new to it , but mine defrosts more than i expected , so the cold foggy winter day when you need it most it will work for an hour then turn off and defrost and let the room cool off before coming back on , and yes does make gurgling noises so wouldnt be ideal if in the bedroom
caziques said:
Don't forget, humans are radiant beings, the mean radiant temperature of a room is more important than the air temperature - and moving air around is draughty and has a cooling effect.
Not entirely sure I agree, when I turn mine on (either with or without the central heating on) it rapidly raises the living room temperature to a very cosy level indeed, it's literally belching warm air around the room but certainly not enough to make the room draughty.It's at the point now where on cold days I'll often give the central heat a boost with it because the radiator on it's own just doesn't do the job so well.
biggiles said:
Air-to-air i.e. simple air conditioning is getting more common: search on the forum for experience with "mini split" systems - a lot of us installed them over the last few years.
They work pretty well. Efficiencies seem to get better with newer models. They seem expensive when it's really cold, but fortunately that's rare. Unfortunately we live in a damp climate, so they can freeze up (requiring heat to defrost) much more than people living in minus-20 in Norway where it's really dry and these excel.
I got a split a/c system last year to keep me cool in the heatwaves. Gas c/h does the heating very well and inexpensively.They work pretty well. Efficiencies seem to get better with newer models. They seem expensive when it's really cold, but fortunately that's rare. Unfortunately we live in a damp climate, so they can freeze up (requiring heat to defrost) much more than people living in minus-20 in Norway where it's really dry and these excel.
The a/c is technically an ASHP but my interest in that was to save VAT. I don't want to be heated by having warm air blown at me.
I'm looking into this as well.
1st job is to get the solar panels. I have an easy/west facing house. We can fit 14 easily on each side. We also run two ev's' covering 36k between them.
As a result we used 12650kwh last year. Octopus has quoted £17650 for 28 panels and a Tesla power wall, but I'm now going to get quotes off local installers.
I want a air to air heat pump split between our bedroom and open plan living area. Government are now offering £2500 off the total price so that makes it even more appealing.
I'm thinking of waiting for the government low/zero percent loans later in the year. But I imagine prices will go up as will demand ?
1st job is to get the solar panels. I have an easy/west facing house. We can fit 14 easily on each side. We also run two ev's' covering 36k between them.
As a result we used 12650kwh last year. Octopus has quoted £17650 for 28 panels and a Tesla power wall, but I'm now going to get quotes off local installers.
I want a air to air heat pump split between our bedroom and open plan living area. Government are now offering £2500 off the total price so that makes it even more appealing.
I'm thinking of waiting for the government low/zero percent loans later in the year. But I imagine prices will go up as will demand ?
steveo3002 said:
im fairly new to it , but mine defrosts more than i expected , so the cold foggy winter day when you need it most it will work for an hour then turn off and defrost and let the room cool off before coming back on , and yes does make gurgling noises so wouldnt be ideal if in the bedroom
Hey man, One defrost cycle per hr when running balls to the wall is ok. Where is the outdoor unit located?, suffering from cold air recirc?, defrosting in very cold, foggy (moisture laden air) is to be expected.
I’d be more worried if it didn’t gurgle!.
Do your research of A2A Split Aircons for heating before you commit to a particular one. They are not all equal for heating in extreme cold climates below 0 degrees. A Samsung system will work well above 2 degrees outside but performance drops significantly if it drops below 0 degree. I have a couple of 7.2kw TCL split inverter heat pump systems that are rated specifically for colder climate operation. It works significantly better than my brother's same size Samsung system by a long way. Energy consumption is similar but TCL just warms up and stays warm even when outside is less than 0 degrees. The last house i lived in had a Daikin system in it and that is on par with the Samsung but nowhere near as good as the TCL in cold condition.
The mistake is to think all A2A split inverter heat pump all performs the same, its just how much energy and COP it produce. They just don't work that way and are design that way. you need to pick one that is design for the climate condition you are in. If you get subzero temperature frequently then you need to get one that are rated to operate under these condition.
The mistake is to think all A2A split inverter heat pump all performs the same, its just how much energy and COP it produce. They just don't work that way and are design that way. you need to pick one that is design for the climate condition you are in. If you get subzero temperature frequently then you need to get one that are rated to operate under these condition.
Matt p said:
Hey man,
One defrost cycle per hr when running balls to the wall is ok. Where is the outdoor unit located?, suffering from cold air recirc?, defrosting in very cold, foggy (moisture laden air) is to be expected.
I d be more worried if it didn t gurgle!.
yeah now aware its pretty normal One defrost cycle per hr when running balls to the wall is ok. Where is the outdoor unit located?, suffering from cold air recirc?, defrosting in very cold, foggy (moisture laden air) is to be expected.
I d be more worried if it didn t gurgle!.
just wasnt really expecting it so much , had assumed it was more so actual freezing days /snowy weather , not a 3 deg foggy morning
tbh i bought it more for the cold air in the summer , the fact its a heater is a bonus
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