New build property insulation & heating advice

[wmsteele]

Need some advice on a new property that I moved into this summer. Wit

winter now setting in and temperatures falling I have becom increasingly concerned with the buildings insulation / heating.

A fairly powerful 35kw combi has been installed. Radiators all perfor as expected with no cold spots on any of the panels. Thermosta controls are in the main hall on the ground floor. Setting th thermostat at a fairly reasonable 20c results in the boiler operatin constantly, never reaching the 20c setting.

Its been really cold for a few nights now and I am getting reall concerned about this. As far as I can tell the combi is workin correctly. Its the ability to retain heat within the house that appear to be the problem.

How can you tell if your house has been insulated properly??

Don't say have a look in the loft, lol, I don't have one! The house i split over three floors, the top floor being double height with sloping roof. I know that the cavity between floors (2nd/1st

1st/ground) is not filled. The ground floor is concrete, again n insulation, with the floor boards fitted to wooden batons.

Is it possible that the floor cavity's should be insulated?

The internal and external walls show no signs of being insulated. Sinc moving in I have fitted my fair share of shelves, curtain rods, blinds Not once have I drilled and found any evidence of insulation within th walls. Not being in any way clued up about building regulations I am no sure if this is normal.

How can I tell if the house is properly insulated? Is it possible t get it inspected in some way??

Another issue that cropped up this morning was caused by the car bein garaged last night for the first time (saves me from scraping!) Starte the car up this morning in the garage but needed no move some boxes tha had fallen over during the night before driving out. We are talkin about 10 minutes max with the garage door fully opened, within thi time the bedroom above, where my wife was still in bed, was fillin with exhaust fumes. Garage doors aren't exactly air tight and as i isn't heated it would explain the ice box conditions in the maste bedroom.

The big question is who do I turn to? I want to get a professiona advice before contacting the builder / NHBC. Just not sure who I shoul be contacting.

Any advice greatly appreciated

[Ian Stirling]

Size of house?

35Kw should heat most houses quite warm. I expect that in fact it's modulating down to some much lower power.

Simple test. Turn it up to 35C. What happens?

[Richard Faulkner]

In message , wmsteele writes

as expected with no cold spots on any of the panels.

controls are in the main hall on the ground floor. Setting

thermostat at a fairly reasonable 20c results in the boiler

constantly, never reaching the 20c setting.

I have a Jaguar boiler in one of my flats, and you can set it for a variety of Kw outputs.

What is the make and model of your boiler? Whilst it may have a max setting of 35Kw, it might be set to much less.

[Rick]

Its the BCOs job to ensure the builder insulated it correctly.

Maybe they used that bubblewrap insulation stuff ?

I would seek an architecturial survaror, phone a few up, and see if they have a track record in this type of work.

Rick