Rocket Ron

Thank you both so it could be more expensive to run underfloor heating than appropriately sized and installed radiators unless I add a mass of insulation to the subfloor is that what I am to understand? if I installed underfloor heating, it would be to reduce the monthly expenditure on Gas and also for the comfort factor if it’s not going to save me anything in terms of running costs I may as well do as you suggest and stick with radiators

Thank you for the valued input. The boiler has already been installed. It is a 35 kW condensing. Vailent I’m not sure of the model number right now. another thing I’d like to clarify about the suspended floors and the heat loss downwards. Are you sure that even an overlay system for underfloor heating would suffer heat loss downwards? This is contrary to what the manufacturers advice and I’m becoming confused so I came on here for independent advice. I’m very much the point of making the decision and pulling the trigger and if radiators run in the way you suggest all the better option then I will continue as planned and travel around the country collecting cast iron radiators for their historical appeal and their performance

Hello everyone We are in the process of sympathetically renovating a large Edwardian three story semidetached house and we are considering underfloor heating for the ground floor. The property benefits from double glazing and an open plan area of approximately 70 m² consisting of a lounge area plan extension with bifold windows and an kitchen separated by a single wall. The property has a traditional suspended wooden floor and we are considering an overlay system such as those supplied by Wunda. The materials quotation has come back as favourable however I see complications running the 35 kW valent boiler with Custom iron radiators in the upper floor and underfloor heating on the ground floor. The idea for this is to reduce energy costs as well as comfort. The alternative is to run cast iron radiators downstairs and upstairs at Delta 40. I need some help with the best solution for our house as I have no experience within the floor heating let alone running a radiator system upstairs and an underfloor heating system downstairs. Any help and advice would be gratefully received? Is it going to be worth the cost and installation of underfloor heating over and above that of cast iron radiators. Will I be able to effectively run radiators and on the floor heating off the same boiler? It’s decision time now so any help gratefully appreciated. just to add that the rear of the property where the bifold windows are and the extension is has all been insulated in accordance with current building regulations the front half of the property and upstairs is traditionally built