So with fuel prices going super high, I am looking at some options to save on oil use.
I have a Worcester 12/18 Combi Oil boiler, feeding UF Heating system via an accumulator tank, and of course bathrooms for hot water.
I have access to 7Kw of free Electric from a Solar Farm with storage, so 7Kw is always available day and night. So I have used a 3Kw emersion heater in the accumulator tank, with a stat set at 50C, that is switched only when heating is called. This then heats the CH circuit and works awesome, the boiler burns less oil to heat the CH. Using the free electric to help the boiler along.
Now I was wondering can I use a small 3Kw water heater to pre heat the cold into the boiler. Again with a view of less oil used to raise the DHW temp.
I have a Worcester 12/18 Combi Oil boiler, feeding UF Heating system via an accumulator tank, and of course bathrooms for hot water.
I have access to 7Kw of free Electric from a Solar Farm with storage, so 7Kw is always available day and night. So I have used a 3Kw emersion heater in the accumulator tank, with a stat set at 50C, that is switched only when heating is called. This then heats the CH circuit and works awesome, the boiler burns less oil to heat the CH. Using the free electric to help the boiler along.
Now I was wondering can I use a small 3Kw water heater to pre heat the cold into the boiler. Again with a view of less oil used to raise the DHW temp.