FYI :- JG Speedfit pipes and heat pumps
I've been considering installing a heat pump using plastic pipes from JG Speedfit for ease of fit (well ... having wrestled with PB pipe it may not be so speedy to fit). Having bought a load of pipe I thought it best to double-check with JG Speedfit about compatibility; they offer a 50 year guarantee for central heating, cold and hot water. However they exclude recirculating hot water systems from the guarantee, which made me concerned.
The helpdesk stated that the guarantee applies where it will not be constantly running, which seems to imply that a finely tuned heat pump (one operating at reasonable flow for half the year) is out of guarantee. I was given the contact details of second line support but they've not got back to me on this issue.
Hi
I installed my first heat pump using JP Speedfit fitting entirely. After 10 years no problems. I didnt run it continuously though as the property was super insulated. Just fitted a 5kW samsung in my new property using the existing radiator pipework but used speedfit elbows on the radiator tails but I did use Hep2o inserts and pipes as they are thinner and metal.
The UFH manifold in my old property was speedfit pushfit too so they must expected pretty much continuous use there.
If you have any awkward joints which would be a bitch to get to you could always put a compression joint on those.
From my experience I have had no issues using plastic pipe and fittings with a heat pump. My flow rate is fine as is my COP. Perhaps there might be more of an issue if using a larger sized heat pump?
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
Sadly still no word from second line support. I'll give them a ring today, rather than waiting for a response to my email.
Posted by: @bontwoodyThe UFH manifold in my old property was speedfit pushfit too so they must expected pretty much continuous use there.
Indeed Speedfit appear to be promoting the UFH applications, so it is a bit of a mystery as to why a heat pump would not be supported. I would think that matters is the flow of water and the temperature rather than the thing which warms up the water.
Posted by: @bontwoodyAfter 10 years no problems.
I felt that the Speedfit system's guarantee had a certain value to it (they being confident that the pipe will last), otherwise one would use other brands of polybutylene (or Pert/Al/Pert) pipe at half the price.
- 25 Forums
- 1,513 Topics
- 31.8 K Posts
- 19 Online
- 1,283 Members
Join Us!
Latest Posts
-
RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 4 hours ago
-
RE: Ecodan - flow rates, sensors, settings
Achieving an accurate flow measurement is probably the ...
By Derek M , 7 hours ago
-
RE: Ecodan ASHP - How to optimise my set up?
Again, thank you for another thorough post, @derek-m - ...
By rhh2348 , 9 hours ago
-
RE: Delivering a smart and secure electricity system: government consultation
@Transparent.Now that I am represented by a new MP I th...
By IanMK13 , 11 hours ago
-
RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 12 hours ago
-
RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 1 day 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 , 2 days ago
-
-
RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 3 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 , 3 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 , 4 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 , 4 days ago
Latest Topics
-
Ecodan - flow rates, sensors, settings
By rhh2348 10 hours ago
-
Replacing mains water with well water
By Johnmo 2 days ago
-
Additional Battery v Wind Turbine v Ripple
By bontwoody 2 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 5 days ago
-
Battery Storage Wiring Gauge Question
By Puff 6 days ago
Members Online
No online members at the moment