TheFlash
Reiki Audio
I do want to stick with electricity…I guess that shows the crux of the problem, a very expensive way to use expensive energy.
As you've probably noticed i see cheapness as a virtue and i'm not very fussy.
I do want to stick with electricity…I guess that shows the crux of the problem, a very expensive way to use expensive energy.
As you've probably noticed i see cheapness as a virtue and i'm not very fussy.
See opening post. Storage rads! Initial plan was a well insulated high capacity electric boiler which could heat the water off-peak and circulate according to a schedule but with overrides.Dont know about nest by I have Hive, and each rad I put a smart valve on. So now each room is controled by the smart valve. I have not done the math, but I think our gas is down like 20% this year, but there will be all sorts of factors I am sure.
Surely if the apartment is hot, then the nest will tell the boiler not to kick in?
Great stuff, thanks. As @Vinny has just posted, you’ll need to do the same calcs I’d need to do… or as you will be taking on one of my system options you can be my R&D scout!We're in the process of buying a flat which uses a weird system i've not seen before. It's got traditional water radiators, but these are fed from a storage tank which is heated on economy 7. Basically there's a hot water storage tank which feeds the hot water + radiators, but this is heated by electricity. I'm rather dubious how efficient this is, but we'll see.
Obviously a system like this would allow you to keep the hot water economy 7, and use the nest system to decide when to heat the flat using the radiators.
The other thing the flat has that I didn't know about is a dual tariff electricity meter, so rather than a separate economy 7 circuit that powers one element in the heating, as I understand it, all electricity use through the meter switches between the two tariffs depending on hours, which seems pretty sensible to me.
Ah damn I fell at the first hurdle.See opening post. Storage rads! Initial plan was a well insulated high capacity electric boiler which could heat the water off-peak and circulate according to a schedule but with overrides.
I do let friends (including several Fishies) stay there for a contribution but that’s a handful of times a year. It’s not and never will be a commercial let AirBnB style; that would mean ditching the hifi, etc and I have zero interest in becoming a for-profit landlord. Its primary purpose is as my personal base in my home (birth) town with access to the Lakes.Let out the flat and use the income to stay wherever you want whenever you want.
I’m going to poke this later. Thanks! As I have a dual rate meter anyway, one of the options I’m talking to an electrician about is dumping the separate circuit and replacing the 4 hard-wired wall plugs with normal 3-pins, with the whole flat on the one circuit. I need such specialist input on the practicalities and on the billing implications of same if any.Ah damn I fell at the first hurdle.
May I introduce you to HomeAssistant?
You could reasonably have a smart thermometer in the room, or get home assistant to pull from nest, then have smart plugs for on/off on the heaters, however I feel I have found my own demise in that they arn't usually on plugs?
yes and having to use an app is not very good with a holiday let !! more complication . my normal phone doesnt even have an app facility and many older folks dont have smartphonesMany of these require the phone/device with the control app on it to be on the same wifi network as the radiators!
These might not be such but as I said up front I’ve been round the houses on this and given up each time because I couldn’t find the right product.
We're in the process of buying a flat which uses a weird system i've not seen before. It's got traditional water radiators, but these are fed from a storage tank which is heated on economy 7. Basically there's a hot water storage tank which feeds the hot water + radiators, but this is heated by electricity. I'm rather dubious how efficient this is, but we'll see.
Obviously a system like this would allow you to keep the hot water economy 7, and use the nest system to decide when to heat the flat using the radiators.
The other thing the flat has that I didn't know about is a dual tariff electricity meter, so rather than a separate economy 7 circuit that powers one element in the heating, as I understand it, all electricity use through the meter switches between the two tariffs depending on hours, which seems pretty sensible to me.
It’s really not a holiday let… though I know what you mean! Most folk who do stay there are fellow hifi enthusiasts and use a smartphone, but I wouldn’t exactly expect them to download an app to control the heating. Something like Nest has a controller on the wall as well as app control and this is ideally what I want to use (or similar if necessary).yes and having to use an app is not very good with a holiday let !! more complication . my normal phone doesnt even have an app facility and many older folks dont have smartphones
3.6MJ.A kWhr is 3600J (3.6 kilo-joules).
I hope that I have the decimal point in the right place, but a realistic but absolute maximum heat storage for water comes out to be something like 0.16kWhr per gallon. You can't use water very cool for radiator heating and you can't really use scalding-hot water either. I used a 35C difference, but even an unrealistic 70C difference obviously only doubles the heat held by the water. It is a total and complete non-runner in practical terms.
The past/present winter has been crazy mild, so heating bills should be low.
Depends on the heating demand. A Powerwall 2 is 13.5kWh max before you factor in any reserve for power cuts, and that does not cover a lot of daytime heating in the winter.Have you ever thought about investing in a Tesla Powerwall 2 to store the lower priced electricity and then use the nest to control the rads remotely?