Heating for new build?

raypallas

Hi guys,

Have passed planning, waiting for the construction drawings at the moment.

It will be a dormer house 2500ft looking for peoples opinions on going for underfloor or traditional rads?

Running costs and running costs if possible

thanks guys

antoinolachtnai

The running costs have basically nothing to do with the type of heating. What matters is how well insulated the house is and how much the house can benefit from the heat of the sun during the winter.

Your architect or other professional should be able to estimate the heating requirement and from there you can decide how to heat it.

darkdave265

Hi Raypallas
It depends on what the size of each area that is to be heated compared to the heat exchanged by the rad or UFH. Some areas may suit either rads or UFH more. Some people will say that UFH is always more efficient and generally is, but not always.

agusta

In general,. Air to water heating system, heating and hot water 1000 to 1200 euro per year

darkdave265

Agusta,
I have a air to water system for 2600sft and my bill are maximum 750 euro per year.

ted1

With UFH you have a huge benefit of not having radiators breaking up walls. So cosmetically UFH wins.

Would you give consideration to building a Passiv house?

Shanaknocker

I am in a similar confusion of thought, I am looking at a air to water system (6kw) with UF downstairs and rads upstairs, or rads all over. UF came in cheaper (not much) but i am worried about the responsive time in UF, as my house will be insulated to passive standards, i wont need the heating on all the time and worried that i will use a lot of energy getting the floor back to a temp that will heat the house, where rads are responsive.
MY second option was Thermodynamic panel for the hot water and electric rads with PV panels!!! Initially i wanted to use the thermodynamic system attached to a water grill that will heat the ventilated air going to the main living area. thus this will keep the rest of the house at a reasonable comfortable level. bit don't think the COP of the thermodynamic panels are as good as advertised, think they are around 2.2 where as advertised as around 4.
Not sure if this is helps you Raypalla, or was it an excuse for me to vent my frustration at the whole process. Any thoughts

darkdave265

Shanaknocker wrote: »

I am in a similar confusion of thought, I am looking at a air to water system (6kw) with UF downstairs and rads upstairs, or rads all over. UF came in cheaper (not much) but i am worried about the responsive time in UF, as my house will be insulated to passive standards, i wont need the heating on all the time and worried that i will use a lot of energy getting the floor back to a temp that will heat the house, where rads are responsive.
MY second option was Thermodynamic panel for the hot water and electric rads with PV panels!!! Initially i wanted to use the thermodynamic system attached to a water grill that will heat the ventilated air going to the main living area. thus this will keep the rest of the house at a reasonable comfortable level. bit don't think the COP of the thermodynamic panels are as good as advertised, think they are around 2.2 where as advertised as around 4.
Not sure if this is helps you Raypalla, or was it an excuse for me to vent my frustration at the whole process. Any thoughts

Well Shanaknocker. With the right heat pump but more specifically the right controls UFH doesn't necessarily take to long to heat up. With my controls the rooms are set at 22 degrees constantly no matter what the temperature is outside. So basically the pump is on all the time but at a very low speed. So there would be some heat in the underfloor heating at all times except in the summer of course.This actually adds to the efficiency of the pump, more than it being switched on and off. Have You considered using PV panels with a heat pump. I think this might be my next investment.

mjp

Similar to you raypallas hoping to start new build of 2,500 sq foot former house next year.

Haven't done BER so not sure what my exact heat requirement will be but thinking will be going A2W with UFH on ground and 1st floor. With amount of insulation and level of airtightness along with MVHR I don't think will be needing heating a whole lot but obviously need renewable system and meet Part L requirements.

Interested to hear what stoves or other heat outputs people are using with above systems. Have chimneys in living room and snug off kitchen but wondering what would be our best options for these? Don't think will be needing these for heating house but will have to have something in place and herself wants stove and floating fireplace in rooms.