Posted by: @toodles@editor Mars, your heat pump is some distance from the property isn’t it? I would be interested to know please, how that pipe run was insulated as presumably, otherwise there would have been significant heat loss (and warming of garden!) over ??? metres of run. Regards, Toodles.
I did this calculation for a 20m run based on proprietary dual pipe 100mm OD insulated, for which loss figures were given by the manufacturer, and got to about 200W. I cant quite remember if it was 200W out and another 200W back. So 5-10% based on a 4kW average burn. Not insignificant, but not completely crippling either. Its not something you would choose to do if it could be avoided.
@editor [Second attempt to reply - first attempt shot up the heat exchanger!]
I think you may find the answer is the cube root of ‘42’!😊
Seriously though, I did contemplate the prospect of having our ASHP somewhere down the garden but felt that heat losses might be a problem. I envisaged that perhaps the ‘normally insulated’ pipe runs would perhaps then be placed in a double skinned insulated trunking to reduce losses. I decide that other complications would put the kibosh on any such plan as we would have to dig up considerable amounts of paving and steps, circumnavigate a drain and a sewer pipe and goodness knows what else en-route! I think your maths could baffle any politician into providing anything you so desired Mars! 😊 Regards, Toodles.
Toodles, 76 years young and hoping to see 100 and make some ROI on my renewable energy investment!
@toodles the cost of the heat loss was not insignificant too. I think it was around £1,000 for the 25 odd metres. We were lucky that we had a gravel driveway. Definitely wouldn’t have done that if it had been paved.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
@jamespa interesting. Hopefully we’ll be able get some probes at either end of the run and see the numbers are.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
@jamespa and @toodles we have definitive proof of heat loss via the heat loss pipe. I’ll try to figure out how much.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
@derek-m The new kid on the block does not make noise 'constantly'. He/she does not generate LFN which is the source of insomnia, brain fog, palpitation, etc.
Heat pumps generate air-borne, structure-borne, and LFN. Ear plugs do not work for the last two.
- 25 Forums
- 1,513 Topics
- 31.8 K Posts
- 35 Online
- 1,284 Members
Join Us!
Latest Posts
-
-
RE: Delivering a smart and secure electricity system: government consultation
Compared to a poorly executed development and rollout, ...
By ChickenBig , 1 hour ago
-
RE: Ecodan ASHP - How to optimise my set up?
That would seem logical, however do you know if the FTC...
By rhh2348 , 1 hour ago
-
RE: Ecodan - flow rates, sensors, settings
As mentioned above, the one I have 1) has the MITSUBISH...
By rhh2348 , 2 hours ago
-
RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 9 hours ago
-
RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 17 hours ago
-
RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 2 days ago
-
RE: Do I accept an ASHP and Solar Panel retrofit under the HUG 2 scheme?
Will do. I'm currently waiting for another survey / vis...
By dssr , 2 days ago
-
The company that did the borehole were expecting us to ...
By Johnmo , 2 days ago
-
RE: The Misquote That Ruined the Heating Industry
@abernyte manufacturer training is pretty average. They...
By Mars , 3 days ago
-
-
RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 4 days ago
-
RE: Do I just go with the lowest quote for my heat pump?
@jancold To me its a no-brainer then, a max 40C flow te...
By bontwoody , 4 days ago
-
-
RE: Heat Pump Books Beginners – Bodge Buster & From Zero To Heat Pump Hero
@editor Presumably he had some good weather Compensatio...
By Toodles , 4 days ago
-
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
Storage capacity really is dependent on storage tempera...
By Johnmo , 4 days ago
-
RE: HP Cycling, Expected or Undesirable
Just a little update. I ordered a longer shielded twin ...
By bontwoody , 4 days ago
-
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump
Thanks @allyfish for the pics and info. Spoke to the in...
By Mellow , 4 days ago
-
RE: Aira Heat Pump: Stylish Scandinavian Heating
It's been a busy day for calls and emails from Aira. I ...
By MikeH , 5 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Hmm. A bit of a nuanced answer, methinks. As I've alr...
By Majordennisbloodnok , 5 days ago
Latest Topics
-
Ecodan - flow rates, sensors, settings
By rhh2348 15 hours ago
-
Replacing mains water with well water
By Johnmo 2 days ago
-
Additional Battery v Wind Turbine v Ripple
By bontwoody 3 days ago
-
By jamespipe 3 days ago
-
VDI 2035 heating water specification
By Johnmo 3 days ago
-
Do I just go with the lowest quote for my heat pump?
By Jancold 5 days ago
-
The Misquote That Ruined the Heating Industry
By Alec Morrow 6 days ago
-
Battery Storage Wiring Gauge Question
By Puff 6 days ago