Are Solar Diverters Necessary for Homes with ASHPs and Solar PV?
I've had an iBoost for 6 years. In total it tells me I've 'saved' 2400 kWh to date. For the first 4 years it did a reasonable job of heating the water during the summer leaving me with minimal gas bills. Since buying an EV two years ago then installing a Powerwall last February the amount of savings have dropped (of course). The Powerwall is charged first and then the water. Having said that today, overcast but with PV generation, the iBoost is currently heating the water. The PW is now at 100% but there is not enough PV output to warrant plugging in the car. The iBoost has more than recouped its purchase cost if you assume an average electric tariff over that time. If you use an average gas tariff then it's a moot point - however it has saved CO2 emissions. I'm on IOG so do not use the iBoost overnight. The saving is marginal. It would make no sense to have one with an ASHP - unfortunately Octopus have declined to fit one (apparently I need a 14 kWh HP and they only supply up to 11 kWh). If/when the iBoost fails I will not replace it. There would likely not be any payback during its life.
@zzxap19 that's a fair point. With the eddi, is it possible to set the diverter to only kick when the HW cylinder is at a certain temperature. That would be ideal. Allow the heat pump to efficiently get it to 45C, and allow the diverter to take over from there to 50C and beyond.
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
@andris you mentioned a cover for your HW cylinder. Did you buy one?
Buy Bodge Buster – Homeowner Air Source Heat Pump Installation Guide: https://amzn.to/3NVndlU
Follow our sustainability journey at My Home Farm: https://myhomefarm.co.uk
@editor No, I made one 😀
Loft insulation all around, then put an old curtain around it to seal the fibre glass. It is located under my stair case inside the house. Not the best as it is a horizontal tank. But I have definitely halfed the heat loss even though it is inside the house.
16kw Samsung TDM ASHP. 8.4kw PV, power optimizers 20×420watt panels 6kw SolarEdge inverter.
- 24 Forums
- 1,422 Topics
- 29.9 K Posts
- 35 Online
- 1,206 Members
Join Us!
Latest Posts
-
RE: Are Solar Diverters Necessary for Homes with ASHPs and Solar PV?
@editor No, I made one 😀 Loft insulation all...
By Andris , 2 hours ago
-
RE: Observations on my Ecodan's estimates of energy consumed and delivered
@hestia I haven't touched this setting. As I can't dete...
By glpinxit , 2 hours ago
-
@hughf Thanks for that. Ah so they are talking about ...
By IRMartini , 5 hours ago
-
RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
@editor We never received a quote; we had numerous emai...
By Toodles , 5 hours ago
-
RE: Ecodan software update. Real or scam?
@abernyte, hmm, must have been a major disruption if 40...
By Mars , 7 hours ago
-
RE: No-code, plug-and-play monitoring for your heat pump
For what it's worth, after my Mitsubishi Ecodan heat pu...
By scrchngwsl , 7 hours ago
-
RE: Installing your own ASHP - DIY
I’m in the DIY camp, completed the install last Septemb...
By HughF , 13 hours ago
-
Riello / Midea - modbus set flow temp
Hi, I’ve got a Riello NXHM 8kW HP with emonHP, all wo...
By stuartornum , 19 hours ago
-
RE: Bivalent (or even trivalent!) system design options for a new GSHP installation
@transparent You are a bright spark aren’t you?!
By Toodles , 1 day ago
-
RE: Noise problems with newly installed Samsung 8kW ASHP
That could be the case, depending on where the triple r...
By AllyFish , 1 day ago
-
RE: Say hello and introduce yourself
@irmartini Oh! That’s a great shame.😳 Toodles.
By Toodles , 1 day ago
-
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?
@david999 On the subject of isolation after the battery...
By HughF , 1 day ago
-
RE: New Fogstar 15.5kWh upright solution
@robl I've added the screens. Li-Bms screen is accur...
By GGW , 2 days ago
-
RE: SCOP and seasonal variations
I’ve had a long chat with Aaron from Homely Technical S...
By Toodles , 2 days ago
-
RE: Gas Combi to ASHP - Making sense of survey results and proposal.
Many thanks to everyone who has helped with advice and ...
By IRMartini , 2 days ago
-
RE: What is Wrong with our Heat Pump Installation?
With BESS the ASHP is best. Charge battery for free fro...
By AllyFish , 2 days ago
-
@hubb84 Try looking at powerflushassociation.com. They ...
By Toodles , 3 days ago
-
Central heating inhibitor with ASHPs
Have you seen the Heat Geek article and video?
By ChickenBig , 3 days ago
-
RE: Advice on potential HW Cylinder size
@jwilliams89 I would imagine that the MCS would insist ...
By bontwoody , 3 days ago
-
RE: Creating a second zone on Mitsubishi Ecodan ASHP
Had another go at this, the morning. With SW2-7 ON it ...
By BryanB , 3 days ago
Latest Topics
-
By IRMartini 6 hours ago
-
Riello / Midea - modbus set flow temp
By stuartornum 19 hours ago
-
Ecodan software update. Real or scam?
By Morgan 1 day ago
-
Noise problems with newly installed Samsung 8kW ASHP
By Lokisam 3 days ago
-
Central heating inhibitor with ASHPs
By IRMartini 3 days ago
-
Advice on potential HW Cylinder size
By JWilliams89 4 days ago
-
By Graeme 5 days ago