casttolast
Member
- Messages
- 2
- Location
- Australia
I am planning on a small 70W circulation pump system using a 45L header tank in the roof space.
1" flow, 3/4" return in a parallel circuit. Clamp on pipe thermostat.
What radiator heat (kW or size of radiator) do people here feel a classic Rayburn Royal DHW could achieve? I would not be running any DHW of course.
Planning on 3 or 4 radiators but expecting to run only 2 at the one time.
Rayburn have always rated their cast iron vitreous lined boiler at a very modest 1.9kw but I feel that's way too conservative. I have seen other manufacturers boilers of similar size rated at 4/5kw.
1" flow, 3/4" return in a parallel circuit. Clamp on pipe thermostat.
What radiator heat (kW or size of radiator) do people here feel a classic Rayburn Royal DHW could achieve? I would not be running any DHW of course.
Planning on 3 or 4 radiators but expecting to run only 2 at the one time.
Rayburn have always rated their cast iron vitreous lined boiler at a very modest 1.9kw but I feel that's way too conservative. I have seen other manufacturers boilers of similar size rated at 4/5kw.