Recent content by shu48

That sounds plausible. I will experiment with an efficient return temperature. I might have to set the programmer to heat the cylinder for longer periods. Once a week or so, I can leave it on continuous for a good while before running the emersion for a while to hit 65. Alternatively, I could...

I was talking about return temperature, not flow. My understanding is that the return is used to cool exhaust gasses. I'm pretty sure that as far as the heating circuit is concerned, the lower the flow temperature the better, so long as it's high enough to heat the home and satisfy the...

I don't know if I'm best off turning down my boiler and using a bit of immersion, or running the boiler with a high flow temperature. Just moved and new place has an old vented CH system. The cylinder is poorly insulated. The boiler is oil fired and is a relatively new, condensing type. In...