cheapest way to heat conservatory?

Yoshii

hi me again.
h=just how cheap is it to have the underfloor heating on. with electricity prices sky high i thought it would be more expoensive option

thanks
yoshii

mattogier

Yoshii wrote: »

hi me again.
h=just how cheap is it to have the underfloor heating on. with electricity prices sky high i thought it would be more expoensive option

thanks
yoshii

Sorry - my fault - I'm talking about WET underfloor heating where the pipes run in the floor full of WARM water - not the electric type.

christineperseus

Don't forget to switch the ceiling fan on too, push that rising hot air down!
We have two rads from central heating AND a wall mounted electric heater - for days in summer or middle of night when heating not on!
Belt and braces!

mattogier

Yoshii wrote: »

hi with regard to mattogiers comments about getting big as possible radiators for all the radiators , would this not this be too much btus for the boilers as i have been lead to believe. this is all very confusing

would this mean that the rads would not get hot enough because too many btus on demand at the same time?????

very interested on thjis subject as i want too change to a 36 kw bosch boiler to power 14 rads with possible need to get 3 extrea rads on new extention. any help appreciated.

yoshii

It is more of a function as to how much heat your house loses at a given internal and external temp rather than how big your boiler is - if the boiler is not big enough then it is of no matter how big the rads are or are not.

If it is 5 degrees outside and you want 22 degrees inside and your insulation in total is reasonable then one's boiler might be fine - but if it drops to -10 degrees outside you MIGHT only get to 18 degrees inside with the boiler on full bore - you can always put another jumper on or do some cooking!


My main point is that IF you have big rads (or underfloor heating) then 95% of the time you can run a condensing boiler at a lower, more efficient temp, there will be times that you may choose to turn up the water temp on the boiler.

We have min air temps of 10 degrees at night and in the middle of the day and 17.5 degrees during the morning and evening - we both work from home. Usually the heating water temp is set to 40 degrees but I did turn it up to 45 degrees over the cold snap recently just to get the house warmed up quicker!

We also do not get so much heat from the lighting as we have changed to CFL and LED bulbs but have seen a dramatic reduction in our electric bill!!!
I have also added an extra 100mm of Hemp and Cotton insulation in the loft to help reduce heat loss but have yet to work out thick curtain on the new 4m wide full height glass folding sliding doors that I installed as part of the extension.

teadrinker_3

I wish I had consulted mattogier before we had our conservatory built.
Our builder who built a great conservatory for us gave two wrong pieces of advice, one about the roof and the other about underfloor heating.

He said underfloor heating took too long to warm up and cool down.

He also recommended a tinted roof despite the fact we said that we did not get very much direct sunshine. It,s a bit dark.

brig001

Regarding warm water underfloor heating in a conservatory, it's good if you use it a lot. If you are only in the conservatory for half an hour in the evening, it will take too long to heat up, so there is some truth in what you have been told. We use ours all the time so it works out OK and the cats love it.

I'm not sure about this, but I think that any heating in a conservatory has to be controlled independently from the rest of the house i.e. a separate timer and thermostat.

Yoshii

thanks mattogier. i now have more of a grasp of bigger rads in the home as a just incase senario of very low temps outside and having to up temp of boiler to compensate for a cold snap.

yoshii:o