M
MattC76
Hi All,
I've been hunting around/reading manuals etc for ages but can't seem to get a definite answer and hope you guys might be able to help!
We've just moved into an old 5-bed victorian house and I'm not convinced I fully understand how the boiler works. The system consists of:
1. Worcester Greenstar 30cdi conventional boiler with Honeywell St9100A control panel
2. Hot water Cylinder with cylinder thermostat (currently set at 60degC)
3. A room thermostat in the hall (honeywell CM907) hardwired to the mains elec.
4. TRV's on all rads apart from in the hall where the thermostat is.
My questions are:
1. Will the boiler respond to the cylinder thermostat if the boiler is OFF on the ST9100A? Or is the cylinder thermostat independent of the ST9100A so that the cylinder temp is always 60C?
2. I currently have the temp controls on the boiler (i.e. the dial thingy!) set to max - I have heard this is most efficient - is that true?
3. Is it best to have the boiler set to CONTINUOUS on the ST9100A and use the programmable room thermostat to vary the temp at different times of day/night? Or should I program the boiler to come on in the morning and evening - which is most efficient?
4. We are currently using 3-4 imperial units of gas/day which is getting quite pricey to say the least (I have worked out roughly on our tariff to be about £3-£4 per day on gas alone! - is this about right for a biggish old house?
Thanks in advance and sorry to be a muppet!
Cheers,
Matt
I've been hunting around/reading manuals etc for ages but can't seem to get a definite answer and hope you guys might be able to help!
We've just moved into an old 5-bed victorian house and I'm not convinced I fully understand how the boiler works. The system consists of:
1. Worcester Greenstar 30cdi conventional boiler with Honeywell St9100A control panel
2. Hot water Cylinder with cylinder thermostat (currently set at 60degC)
3. A room thermostat in the hall (honeywell CM907) hardwired to the mains elec.
4. TRV's on all rads apart from in the hall where the thermostat is.
My questions are:
1. Will the boiler respond to the cylinder thermostat if the boiler is OFF on the ST9100A? Or is the cylinder thermostat independent of the ST9100A so that the cylinder temp is always 60C?
2. I currently have the temp controls on the boiler (i.e. the dial thingy!) set to max - I have heard this is most efficient - is that true?
3. Is it best to have the boiler set to CONTINUOUS on the ST9100A and use the programmable room thermostat to vary the temp at different times of day/night? Or should I program the boiler to come on in the morning and evening - which is most efficient?
4. We are currently using 3-4 imperial units of gas/day which is getting quite pricey to say the least (I have worked out roughly on our tariff to be about £3-£4 per day on gas alone! - is this about right for a biggish old house?
Thanks in advance and sorry to be a muppet!
Cheers,
Matt