Hi,
We have just had our gravity system replaced with an unvented cylinder and a Viessmann Vitoronics 200W 32KW System boiler with weather compensator. I bought all the items online myself and the gas engineer has completed first fix - old equipment has all been removed and decommissioned. The 17 new radiators and the system flush will be done on 2nd fix after some plastering has been completed, so we are still running on the old radiators.
The gas engineer has never fitted a Viessmann before and was unsure a little on how to fit the weather compensator. After he fitted the weather compensator I found that the radiators would not heat on when the program come on in the morning or evening. Weather comp would indicate around 13-15c outside and room temp was set at 20c with the heating curve at 1.4.
I have found I have had to increase the room temp to around 25c+ to get good heat to the existing radiators, can someone please advise on what I should do to resolve this as inside the rest of the house we need around 20c max. Boiler is located in the garage and weather comp is 15 away facing outside north..
What heating curve should I start off with etc?
Just some general advice please in relation to options I should try on the settings etc?
Thanks in advance
We have just had our gravity system replaced with an unvented cylinder and a Viessmann Vitoronics 200W 32KW System boiler with weather compensator. I bought all the items online myself and the gas engineer has completed first fix - old equipment has all been removed and decommissioned. The 17 new radiators and the system flush will be done on 2nd fix after some plastering has been completed, so we are still running on the old radiators.
The gas engineer has never fitted a Viessmann before and was unsure a little on how to fit the weather compensator. After he fitted the weather compensator I found that the radiators would not heat on when the program come on in the morning or evening. Weather comp would indicate around 13-15c outside and room temp was set at 20c with the heating curve at 1.4.
I have found I have had to increase the room temp to around 25c+ to get good heat to the existing radiators, can someone please advise on what I should do to resolve this as inside the rest of the house we need around 20c max. Boiler is located in the garage and weather comp is 15 away facing outside north..
What heating curve should I start off with etc?
Just some general advice please in relation to options I should try on the settings etc?
Thanks in advance