thanks that sounds as though it might be expensive though?You can buy 36" immersion heater, but it depend on size of cylinder and whether indirect coil get in the way.
You can order a indirect cylinder with 2 immersion boss.
Why do you want 2 immersion heaters?
Daniel.
No problem I didn't go into detail as I didnt want to bore anyoneSort of begs the questions;
a) Why are you not dumping PV onto the national grid? Then getting cheap tariff leccy to heat your immersion heater?
b) Why don't you fit a twin element immersion heater?
c) Why can't you wire up a Relay to switch over your single element immersion heater?
d) Why have you fitted PV panels when the panel's output will diminish ever the next 5-8 years. Thermal solar would have been much better choice.
Sorry for all the questions.
No problem I didn't go into detail as I didnt want to bore anyoneSort of begs the questions;
a) Why are you not dumping PV onto the national grid? Then getting cheap tariff leccy to heat your immersion heater?
b) Why don't you fit a twin element immersion heater?
c) Why can't you wire up a Relay to switch over your single element immersion heater?
d) Why have you fitted PV panels when the panel's output will diminish ever the next 5-8 years. Thermal solar would have been much better choice.
Sorry for all the questions.
a. I don't get any extra payment for dumping to the national grid so it pays me to use as much of my own production as possible. I don't have economy 7 as I don't think it would pay me. we cook electric etc and most of the year the 7 hours after the PV stops producing and the economy 7 comes in is when we use most of our leccy.
b. I had not heard of them till today but I found out just before reading your post so I am looking in to it now.
c. dont really understand what you mean here. I do have a solid state relay that switches it on/off run by a computer program I wrote.I can switch it on/off when my PV starts/stops producing but that means we wake up to cold water in the morning and sometime run out late evening.
Hence the reason to have one immersion to heat the water on free electric and another smaller one to just top up the tank.
D. I didn't get the PV just for the hot water! it is a very good investment.
I have had the panels for 4 years and I get much more then the estimated output from them and I doubt they will diminish as soon as you think.
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