He is correct
Spray paint is available for plastic frames
At not be a boiler issue . Are any rads hot ? Do you have weather compensation fitted ? Has it ever got hot in the past
You can buy flow restrictors or fit 2 valves on the supply to reduce the flow
Think you will find the flue with a bit of effort will pull out , new one will be same size.
Sound proofing plasterboard and you can get acoustic insulation
My supplier said some of the makes have been known to shrink/ expand with heat / humidity
And the heater itself may contain asbestos depending on its age and the cupboard it’s in may be lined with asbestos board as fire proofing
No heat should be applied for a month ,but the system should of been pressurised to make the pipe expand while the screed is setting
Friends had it done looks great 10 years gtee had. 2 options just frame or frame and reveals
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