I have a 'van with an Alde central heating set up. The boiler is controlled by a simple on off switch and the pump for heating by a programmable thermostat. We set the night temp to 15 and the day temp to 20., but in order to wake up to a nice warm 'van we must keep the boiler switched on all night. the boiler then turns itself on and off during the night to top up the hot water which is a) wasteful and b) quite noisy.
I would like to install a domestic type of programmer to be able to independently control the heating and hot water but all units are mains powered.
So my questions for you electrical wizards are: -
1. Is there a battery or 12v powered programmer on the market, or
2. How can i convert a domestic 240v type to work on battrey or 12v? (bypassing the transformer perhaps?)
I am good with a soldering iron but it's been 20 years since i did electrical principles at tech so i'm a bit rusty on the theory now.