Barney12 Posted October 13, 2016 Share Posted October 13, 2016 New video on Sunamp from the guys at Fully Charged: 3 Link to comment Share on other sites More sharing options...
Auchlossen Posted October 13, 2016 Share Posted October 13, 2016 Fine video, good intro to Sunamp. Link to comment Share on other sites More sharing options...
Barney12 Posted October 13, 2016 Author Share Posted October 13, 2016 Yes, I thought so too. The comment that they now consider Sunamp as being suitable as the ONLY heat source for DHW and heating demand was new to me. The removal of the need for any form of water store is an interesting one and appealing but I'm not sure I fully understand it all. Presumably you'd need at least two inputs and at least two temperature controllable outlets? Could you in theory feed a low temp underfloor heating circuit from water heated from the heat exchange in a sunamp? @Nickfromwales might know? Link to comment Share on other sites More sharing options...
SteamyTea Posted October 13, 2016 Share Posted October 13, 2016 Not having a telly, I did not recognise Robert Llewellyn at first He has changed a bit. Has he had surgery? 2 Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 13, 2016 Share Posted October 13, 2016 Technically it's storing heat ENERGY so can be do texted anywhere you like. I'll check out the vid later and see what I can derive from it Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 13, 2016 Share Posted October 13, 2016 5 minutes ago, SteamyTea said: Not having a telly, I did not recognise Robert Llewellyn at first He has changed a bit. Has he had surgery? Please tell me how this ties in with the sunamp enquiry ? Link to comment Share on other sites More sharing options...
SteamyTea Posted October 13, 2016 Share Posted October 13, 2016 (edited) 3 minutes ago, Nickfromwales said: heat ENERGY Isn't that like saying heat heat, or energy energy. Don't you mean thermal energy, or low grade energy, high entropy (or is it low, never remember, greater disorder). Edited October 13, 2016 by SteamyTea Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 13, 2016 Share Posted October 13, 2016 You stayed in education longer than me I meant it's not full of energy specific to the production of hot water for dhw. ( or poor words to that effect ). Now shut it, and help me say what it is that I meant to say Link to comment Share on other sites More sharing options...
TerryE Posted October 13, 2016 Share Posted October 13, 2016 The Fully Charged series is one that I rate and watch regularly. It's explaining a concept new to most viewers. I am planning to use E7-heated SunAmps. No PV cos of LPA wouldn't allow us to put them on our roof. A double system heated by E7 so makes economic sense for our load profile; it gives us the max flow rates without the hassle of an UHC or its extra 3 kWhr / day heat losses. Link to comment Share on other sites More sharing options...
PeterW Posted October 13, 2016 Share Posted October 13, 2016 Is that two standard units @TerryE..? Have you run the numbers on how much it will store per day..? Link to comment Share on other sites More sharing options...
TerryE Posted October 13, 2016 Share Posted October 13, 2016 Yup, that's my current plan. One doesn't cover our worst usecase. Plus in 4 years time when the planning conditions have lapsed, I'll put a load of PV on our roof. I did look a at ASHP boost but again, it just doesn't make sense. In a few weeks I'll put my design up for critique. 1 Link to comment Share on other sites More sharing options...
VIPMan Posted October 13, 2016 Share Posted October 13, 2016 Just enabled E7 timed input into my twin Sunamp PV setup - the surplus PV generation on cloudy days at this time of year is now problematic. My installation took place in January and I can confirm the very low standing heat loss I suspect we get more 'waste' heat from the adjacent Solaredge inverter. Capacity per unit is 'over' 4kWh (they claim 4-5kWh) . We required a capacity to supply 240 litres into the bath at 40 degrees and the system has always managed to achieve this. 2 Link to comment Share on other sites More sharing options...
Russdl Posted October 13, 2016 Share Posted October 13, 2016 (edited) It's sort of looking like, for a passive house, a twin Sunamp set up, charged by solar PV and E7 (when required) would negate the requirement for any other kind of water heating or storage. Am I reading this right? Edited October 13, 2016 by Russdl Link to comment Share on other sites More sharing options...
volcane Posted October 14, 2016 Share Posted October 14, 2016 11 hours ago, Russdl said: It's sort of looking like, for a passive house, a twin Sunamp set up, charged by solar PV and E7 (when required) would negate the requirement for any other kind of water heating or storage. Am I reading this right? This has been my line of thinking, the cost and potential complexity of installing an ASHP (and maybe requirement to service and then replace in 10 years). I have been thinking of a sunamp stack just to make sure I would be covered and be able to add a HT ASHP later. Possibly a used ASHP may be useful as a preheat source for water going to the Sunamp. Link to comment Share on other sites More sharing options...
gravelld Posted October 14, 2016 Share Posted October 14, 2016 I wonder in a Ph build whether it would also negate the need for any other space heating, given the requirement should be very low (depends how low you are getting). Link to comment Share on other sites More sharing options...
TerryE Posted October 14, 2016 Share Posted October 14, 2016 12 hours ago, Russdl said: It's sort of looking like, for a passive house, a twin Sunamp set up, charged by solar PV and E7 (when required) would negate the requirement for any other kind of water heating or storage. Am I reading this right? That depends very much on your usage patterns. We are a retired couple with a live in son. So three people who shower regularly and have a bath occasionally, and we do our dishes and washing overnight on cold-blooded. So based on our current patterns and use, a dual unit will suit us fine. 25 years ago when we were a couple with 3 kids it probably wouldn't. The thing about ASHP priming is that the water is on demand. You to feed hot water into the SunAmps, soo you need the ASHP running or the buffer tank preheated. It might be worth it for a bath, but think of the complexity that this will introduce. Will you ever get the payback? Link to comment Share on other sites More sharing options...
Barney12 Posted October 14, 2016 Author Share Posted October 14, 2016 16 hours ago, TerryE said: The Fully Charged series is one that I rate and watch regularly. It's explaining a concept new to most viewers. I am planning to use E7-heated SunAmps. No PV cos of LPA wouldn't allow us to put them on our roof. A double system heated by E7 so makes economic sense for our load profile; it gives us the max flow rates without the hassle of an UHC or its extra 3 kWhr / day heat losses. So is that just DHW? Or will it feed any space heating? Link to comment Share on other sites More sharing options...
Vijay Posted October 14, 2016 Share Posted October 14, 2016 What sort of prices are these Sunamps? Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 14, 2016 Share Posted October 14, 2016 On 13 October 2016 at 10:39, Nickfromwales said: Please tell me how this ties in with the sunamp enquiry ? Maybe I should have watched the video first ? 1 Link to comment Share on other sites More sharing options...
Russdl Posted October 14, 2016 Share Posted October 14, 2016 Nick (everyone). Do you think it's feasible and practical to run everything, in a passive house from 2 Sunamps, just using PV and E7? No water storage? No buffer tanks? No ASHP? etc. It seems to me, from my limited knowledge and understanding that it might work, but I would really appreciate your, (and everyone else's) considered opinion. Cheers. Russ. Link to comment Share on other sites More sharing options...
PeterW Posted October 14, 2016 Share Posted October 14, 2016 I'm watching this too ..!! Thought the sunamp could only store 5kwh so will be interested how much this would stand before the temperature dropped and you needed the inline heating to bring athe water to a reasonable temperature. 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 15, 2016 Share Posted October 15, 2016 14 hours ago, Russdl said: Nick (everyone). Do you think it's feasible and practical to run everything, in a passive house from 2 Sunamps, just using PV and E7? No water storage? No buffer tanks? No ASHP? etc. It seems to me, from my limited knowledge and understanding that it might work, but I would really appreciate your, (and everyone else's) considered opinion. Cheers. Russ. Need to speak to them before I can comment tbh. I've not looked at these close enough to cast an opinion but I'll ring Monday and see what the Bobby Moore is. "Please hold the line.......your call is important to us....." ? Link to comment Share on other sites More sharing options...
Russdl Posted October 15, 2016 Share Posted October 15, 2016 Nick, I wasn't expecting you to act as my PA! I could phone them myself but I'm not sure I would know all the right questions to ask. Having said that, if you do call then I would be very interested in your views and, of course, owe you a pint or three. Link to comment Share on other sites More sharing options...
Barney12 Posted October 15, 2016 Author Share Posted October 15, 2016 12 minutes ago, Russdl said: Nick, I wasn't expecting you to act as my PA! I could phone them myself but I'm not sure I would know all the right questions to ask. Having said that, if you do call then I would be very interested in your views and, of course, owe you a pint or three. +1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted October 15, 2016 Share Posted October 15, 2016 1 hour ago, Russdl said: Nick, I wasn't expecting you to act as my PA! Dont flatter yourself lol. I'll 'do it' for the good of the thread / members too and, tbph, I want to know for myself as I may well start promoting these through my business. . To summarise, that's 2 members at 3 pints each so next Friday eve is covered ???? Sweet. 2 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now