Forums

Forums
Members
bontwoody
Activity
 
Notifications
Clear all
bontwoody
bontwoody
@bontwoody
Contributor
Noble Member
Joined: Mar 5, 2022
Last seen: Aug 20, 2025
Profile Activity
Topics: 29 / Replies: 808
AllTopicsReplies
Reply
RE: Samsung heat pump sizing

Im not sure I follow why you are opposed to using an immersion heater for the very cold days? If the price using off peak energy works out to the same...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung heat pump sizing

@johnnyb Hi. Yes I just use the immersion overnight. Although the heat pump could probably get a DHW COP of 3.5 as the price per unit is 3.5 x less ov...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung heat pump sizing

@johnnyb I think potentially you may be right that 8kW will be too large for your heating although the 5kw may struggle with DHW. Can I ask if you...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How accurate was your heat loss survey?

@scalextrix When do you intend taking the plunge? Do you have next winter to work with to get some good data? If you have the house area and a feel ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How accurate was your heat loss survey?

@scalextrix I think what you are describing is exactly why I am so sceptical of room by room assessments and more supportive of previous use estimates...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: UFH and ASHPs

@guydeb I'm just in the middle of constructing a 40m2 extention myself and looking at the amount of insulation required now I expect the heat loss to ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: UFH and ASHPs

@guydeb Yes. No problem running just UFH from an ashp. The issue I think would be the very low heat loss in a 40m2 new extension. How sure are you tha...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

@matwin I believe the degree days calculation is an accurate method of assessing heat pump size. Im not sure how much detail the YouTube video goes i...

3 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Plate heat exchanger considerations

@scalextrix As @JohnMo says though at lower temperatures they need to be bigger so that will probably be the worse performing one in the CH. Also they...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Plate heat exchanger considerations

@scalextrix I cant help with the CH side but you might look at the plate heat exchanger used with a mixergy cylinder to get a handle on the DHW. By al...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Battery sizing - How low can you go!

@chandykris Thats a fair point and something Ive considered. I do keep one eye on ebay for any reduced price battery packs 🙂 Can you post the figu...

4 months ago
Forum
Energy Storage
Reply
RE: Battery sizing - How low can you go!

@chandykris We seem to have similarly sized systems and yes I found Go to be a better choice than cosy with a couple of minor months difference. I r...

4 months ago
Forum
Energy Storage
Page 3 / 70
Share:

Join Us!

Podcast Picks

Latest Posts

Members Online

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
ShieldPRO →