Stelrad radiators
Thank you for the welcome. We will need at least two rads.
@mikefitz, if you go down the Stelrad route, they're really great rads and have been a game changer for us. Are you thinking of getting K3s?
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Hi - very useful discussions. It's great to have access to such a lot of helpful advice.
Another couple of questions:
None of our estimates for installation of ASHP and radiator replacement specify the type of radiator. I guess they think the customer simply isn't interested.
1. We have one estimate that specifies steel radiators. Are the Stelrad radiators steel or aluminium? I couldn't see anything on the website about this.
2. We had one estimate coming in at £16,000. If we wanted to change our radiators they would charge £450 per radiator (all in, including labour). This seems quite steep. What do others think about this pricing?
3. One installer suggested that we change all the radiators downstairs but leave the existing radiators on the first floor alone. We have a one and a half storey house - the bedrooms/rooms upstairs have dormers and velux windows. One of the reasons for this is to reduce the cost but it's also to avoid changing our single pipe system upstairs together with the assumption that all radiators would be on all the time (as they probably would) and, helped by warm air rising from the ground floor, we would be warm enough. What do others think of this proposition to change only half our radiators.
Sorry, that's three questions......
1. Standard Stelrads are steel. Aluminium will be more expensive.
2. Our quote was £16000 for everything including radiators (we had none before). On the quote it was £3800 for radiators, pipework and installation, for 12 of them. We needed another 2 in the end and they charged another £450. K2 Stelrads are in the region of £100-200 to buy, depending on size. £450 each to replace sounds high considering they will be in the house and flushing the system anyway.
3. Heat will rise from downstairs but the more that does the colder downstairs will be (obviously!). You could try only changing downstairs and see how it goes. You probably won't want the bedrooms as warm as the living area. The amount of heat given off by a radiator depends on the temperature difference between the water in the rad and the target room temp - the delta T. The standard for heating calculation is 50 (e.g. room 20 and radiator 70). ASHP rads have a delta T of 30(ish) (e.g. room 20 and radiator 50). To give you an idea that will give you about half the heat output in watts as 50. Google "delta T correction" for more details.
@kev-m thank you. I wondered how long ago you received the quote for £16k. It's just that prices for construction, plumbing, heating, electrical work, have increased steeply over the last year.
Yes, I too thought that £450 per radiator sounded high (despite including labour etc)
Thanks for the advice about Delta T correction. I'll look that up.
@kev-m who was your installer?
We are needing to have our underfloor radiator pipe system altered too (even though it's electric wet heating) so I guess we should expect our estimates to be higher.
@jennyross, it was JL Phillips from Newark, Nottinghamshire.
If you did leave changing radiators until later, any plumber could do it and you shouldn't have to pay any ASHP premium. I'm not an expert but fitting a few rads should be a couple of days work plus the cost of the rads, unless a lot of new pipework is needed.
Hoping to install later this year but in March was quoted £290 per rad. I have no rad's or pipework present so a full install inc' plumbing. Not just swapping rad's. See full quote attached.
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
@jennyross fyi @morgan quote is the same supplier as ours. Ours ended up £300 per rad on the same basis.
@kev-m Are you still impressed/pleased with your installation and system Kev?
Retrofitted 11.2kw Mitsubishi Ecodan to new radiators commissioned November 2021.
14 x 500w Monocrystalline solar panels.
2 ESS Smile G3 10.1 batteries.
ESS Smile G3 5kw inverter.
Posted by: @kev-m@jennyross, it was JL Phillips from Newark, Nottinghamshire.
If you did leave changing radiators until later, any plumber could do it and you shouldn't have to pay any ASHP premium. I'm not an expert but fitting a few rads should be a couple of days work plus the cost of the rads, unless a lot of new pipework is needed.
We had five rads changed in a day - it took the guys about an hour a rad to remove the old one and fit the new one. Would strongly recommend while you have the guys there to balance your radiators, which made a big difference for us – that took a few hours to do in our house.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
From Zero to Heat Pump Hero: https://amzn.to/4bWkPFb
Subscribe and follow our Homeowners’ Q&A heat pump podcast
-
What is this white plastic ring on my radbots?
5 months ago
-
Reusing existing radiators
6 months ago
-
Boiling Mad: Exposing Radiatorgate
1 year ago
-
Eskimo Column Radiator – Fronze Finish
1 year ago
-
Convector options for a small kitchen
2 years ago
Currently viewing this topic 1 guest.
- 26 Forums
- 2,114 Topics
- 46.4 K Posts
- 84 Online
- 3,410 Members
Latest Posts
-
RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 12 hours ago
-
RE: No-code, plug-and-play monitoring for your heat pump
@cathoderay i will have to take a look at that, tbh as ...
By Grantmethestrength , 12 hours ago
-
RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 13 hours ago
-
RE: Benefits of an extra horizontal loop for GSHP
I have no direct knowledge of GSHP ground loops but it ...
By Abernyte , 21 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 23 hours ago
-
Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 24 hours ago
-
RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 2 days ago
-
RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 2 days ago
-
RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 2 days ago
-
RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 2 days ago
-
RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 3 days ago
-
@seatonian got your email. Will connect you with a reco...
By Mars , 3 days ago
-
@downfield and @toddles, this isn’t in the settings cur...
By Mars , 6 days ago
-
RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 6 days ago
-
RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 6 days ago
-
RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 6 days ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 1 week ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago
-
RE: BUS Grant: removal of all other fossil fuel heat sources
@rikiarn - just have a think as to how much it will cos...
By Transparent , 1 week ago
-
Don't do much digging around.That's best left to the pr...
By Transparent , 1 week ago