Renewable heat systems
Discussion
I purchased a house with a air source heat pump, it was sold as a positive and even that i'd earn money from it. Great.
It's taken 4 months to register it, and it turns out I will get £99/quater. But, I get charged £100/month eletric bill to run the thing. It's also started playing up, so a service is £500, which is yearly. It also only heats to 55degrees on a good day, so my house is never that hot and we drain the tank with just a bath.
The previous owners installed it, we don't get gas, at a cost of about £15k.
I'm struggling to see what the benifit is to these things!
(I've tried 4 of the 'approved suppliers' as well, and 3 no longer do it and 1 won't answer!)
It's taken 4 months to register it, and it turns out I will get £99/quater. But, I get charged £100/month eletric bill to run the thing. It's also started playing up, so a service is £500, which is yearly. It also only heats to 55degrees on a good day, so my house is never that hot and we drain the tank with just a bath.
The previous owners installed it, we don't get gas, at a cost of about £15k.
I'm struggling to see what the benifit is to these things!
(I've tried 4 of the 'approved suppliers' as well, and 3 no longer do it and 1 won't answer!)
The house is very old, with an extension. The system was put in when the extension was done, as well as the rads. But I highly doubt they are special rads, knowing how cheaply everything was done. (How does one tell? they look standard)
We do have an immersion, although I've never seen the water temp up to 65.
No gas, hence this system. It's a Mitsubishi.
We do have an immersion, although I've never seen the water temp up to 65.
No gas, hence this system. It's a Mitsubishi.
I don't think it's comparable to say a log burner. Mitsubishi seem to think it's fine for a new build. (maybe not my 300 year old house though).
https://heating.mitsubishielectric.co.uk/Products/...
https://heating.mitsubishielectric.co.uk/Products/...
87sqM, over 3 floors. Basically a 2up2down with a basement.
Front half is old, with secondary glasing. Ground floor is semi detached, 1st floor is terraced (flying freehold over an archway) not a cavity wall. Rear half is the new build, double glasing, cavity wall. Some of the rad are about 2meters wide, usual height.
By what you say, I need a 13KW HP.
Front half is old, with secondary glasing. Ground floor is semi detached, 1st floor is terraced (flying freehold over an archway) not a cavity wall. Rear half is the new build, double glasing, cavity wall. Some of the rad are about 2meters wide, usual height.
By what you say, I need a 13KW HP.
Well, thats all good and well, but I'm less than impressed with the whole thing anyway, so I'm unlikely to drop £5k on a new HP!
We've got a fire and it's not been too bad the last few weeks (we've seen -6, I doubt we'll get much colder than that).
I just want the damn thing to run consistantly, if that means dropping the temp and having it on for longer so be it. The main issue is it doesn't want to swap from hot water to heating.
The error code I get is U1, which is something to do with pressure, I'm hoping it just needs topping up or something.
We've got a fire and it's not been too bad the last few weeks (we've seen -6, I doubt we'll get much colder than that).
I just want the damn thing to run consistantly, if that means dropping the temp and having it on for longer so be it. The main issue is it doesn't want to swap from hot water to heating.
The error code I get is U1, which is something to do with pressure, I'm hoping it just needs topping up or something.
I can answer why mine was under rated. The previous owners knew someone who installed these, I imagine a cash job for old stock or similar!
There is a slight difference to the pipe temps, don't have my laser to hand to get real figures. As said, a Mitsubishi accredited installer is coming next week.
With regards to the error; the pump was on 3 (fastest) and still errored so I suppose that rules i that out.
There is a slight difference to the pipe temps, don't have my laser to hand to get real figures. As said, a Mitsubishi accredited installer is coming next week.
With regards to the error; the pump was on 3 (fastest) and still errored so I suppose that rules i that out.
Incoming update from the missus:
He's already uncovered some shockingly dangerous wiring. Live cables just tucked behind a panel with the live bits wrapped in duct tape. The pump is wired into a plug, so it's running 100% of the time.
I should sue the previous owners, so many things have had to be fixed.
He's already uncovered some shockingly dangerous wiring. Live cables just tucked behind a panel with the live bits wrapped in duct tape. The pump is wired into a plug, so it's running 100% of the time.
I should sue the previous owners, so many things have had to be fixed.
And the report:
pump not big enough
flow rate indicator dirty, can't see water
water temp thermostat in wrong place
LIVE cable - covered in duct tape
"Eco" swtich - Not sure what it's for!
motor not regulated, straight into power, constantly on
need a timer in this for legionnaires
needs overflow pipe
Wouldn't give a price on site, Seems they may as well tear the install out and start again!
pump not big enough
flow rate indicator dirty, can't see water
water temp thermostat in wrong place
LIVE cable - covered in duct tape
"Eco" swtich - Not sure what it's for!
motor not regulated, straight into power, constantly on
need a timer in this for legionnaires
needs overflow pipe
Wouldn't give a price on site, Seems they may as well tear the install out and start again!
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