Water heating options

Newheight13

Hello,

I have storage heaters and have just changed them to metric wall heaters as no gas available. Can I get a boiler that will give me instant hot water for running the bath and 2 basins at any time? I see some heaters that state they can heat 2 basins and that’s it - does that mean they can heat only 2 basins and the water will run cold or does it mean it can only connect to 2 basin supplies? Any advice would be great! Thanks 

Rodders53

Instant water heaters can barely manage a single low flow rate shower with a 10+ kW power input >40 Amps. So no instant water heater would work well.  Many homes have a limit of 60 Amps on the supply cut out fuse.

Stored water via immersion heater in a well insulated tank is the best way to do what you want.  Especially when heated on cheap overnight electric rates.

I really hope you have replaced the night storage heaters to with their modern equivalents and not peak rate electric panel radiators (with it without magic fairy dust).

ComicGeek

Also look at air source heat pump cylinders, which use a small integral heat pump ducted to and from outside to heat the hot water in the cylinder more efficiently and cheaper than immersions.

What are you replacing hot water wise, and how has that worked for you?

Newheight13

Thank you, that’s really helpful 

Grenage

I'd probably opt for solar to heat a tank.

Newheight13

I have gone with electric panel radiators that we used in the previous property and they heated the rooms nicely and were not too costly thankfully. 

Someone has recommended leave the electric  shower as it is and just keep the current Emersion heater, even though it’s 30 years old!  There is low pressure in the kitchen for hot water, just a trickle…so he suggested I get an under the sink water heater for around £100  but I’m tempted to get what I believe is a unvented 45l water tank which will help with pressure and hot water that would be heated on the economy  7 and would heat a bath and then a couple of basins a day? Any thoughts on that?

I can’t do an air pump because if there is nowhere outside the flat to put it sadly. 

Thanks 

markin

Panel heaters are more costly to run, even more so on daytime E7, A hot water tank is unlikely to give a good day/night ratio to make E7 worth it.   

To fill a bath you will need a 150+L  megaflow tank, other brands available, Any tank that is basically a heat store and gives main pressure hot water.

ComicGeek

Newheight13 said:

I can’t do an air pump because if there is nowhere outside the flat to put it sadly.  

The air source heat pump cylinders don't have an external condenser, it's ducted through the outside wall like a cooker hood.

Jonboy_1984

markin said:

Panel heaters are more costly to run, even more so on daytime E7, A hot water tank is unlikely to give a good day/night ratio to make E7 worth it.   

To fill a bath you will need a 150+L  megaflow tank, other brands available, Any tank that is basically a heat store and gives main pressure hot water.

This is the correct sized tank for the job, and would allow you to get rid of any cold water tank taking up space in the flat.