Central Heating

House taking ~5 hours to go from 12.5 - 18 degrees (w/ 1 degree outside) - normal?

Anonymous user 28/02/2024 - 3.35 PM

We have recently had the boiler replaced in our 5 bed ~2500sq. ft 2 storey detached house and finding the house taking longer that expected to reach temperature once set. The boiler installed is a Logic Heat+ 30 heat only conventional type, with the majority of the 23 radiators being of microbore fin-types with TRVs. The loft insulation is approx. 300mm throughout and the property has had cavity insulation installed, having being built in approx. 2004. Before I go down the route of potentially investigating this and getting traders involved, am I being unrealistic in my performance expectionations? Are there any quick fire ways to determine what could be the cause and where to look, if anywhere? Any experience or advice would be much welcomed.