If MHRV is that mechanical heat retrieval something or other then surely thats an expensive solution to opening a window. Surely a high tech answer to a low tech problem.
Sfag,
The point of air-tightness is to loose as little energy from your house.If you also include a MHRV in your air-tight house then you will get the ventilation you require but you will minimise your losses but get the desired ventilation that is required for healthy living.
Yeah I know all that.
But the basics are house size, room tempature and maybe year built as these will confirm to regulation insualtion standards (60 mil hd 3 years ago).
Thats a good enought yardstick to start comparing against.
If MHRV is that mechanical heat retrieval something or other then surely thats an expensive solution to opening a window. Surely a high tech answer to a low tech problem.
the running costs of geothermal are directly linked to the type of construction they are used in.
if you have 310 cavity wall with passive vents, minimum building reg insulation and bad thermal bridging then expect to pay at the top of the scale...
however if you build a well insulated (A rated), airtight construction your heating demands drop significantly and you pay at the lower end.....
comparing running costs without comparing build spec is comparing apples and oranges....
Finally, after reading this I feel that I am beginning to understand more about central heating systems. Although this comment looks like common sense, I would imagine that this is exactly what people don’t realize when they sign up for a GeoThermal system.
i think people should forget about PAY BACK TIME if you want what ever kind of system you want just buy it but if you cant afford it...forget about it
I am with you on that statement that I am beginning to have a better grasp.
I do now have another dilemma if you insulate your home and build to a A standard home then Geo will be in line with the salesmen estimates on running costs. So then surely if you had a cheap oil solution in place that would be much lower than average usage for oil or gas?
I would be interested in seeing a comparison or report between identical built homes running on various heat sources e.g Geo, oil, gas air to water etc. I would be interesting to have a grasp on real running costs and payback time for installation.
I am still leaning towards oil at the moment and to run that for 10 years or so. By then all this renewable heating will be norm and prices should reflect that. I will invest in solar and have priced up a nice system with 10.2 m2 panels 500l tank that should reduce my oil consumption. I will also invest in a stove with a HRV vent above it so that should circulate some warm air around the home.
Now that looks more like it, how did it perform during the recent cold spells?
Would you mind PM'ing the company?
Having lived (& built) in timber frame homes and concrete homes my personal preference is concrete. My main reasons are stop the creaking, fire safety, air tightness, hanging things on the wall etc etc. Now I know full well that you can counter the argument for all of those reasons and list negatives but there really is nothing better than the feeling of a solid home.
I am not saying that timber frame is not a home for life but what I am saying is that I want the home I am going to spend the rest of life in to be built to way that I would be most happy with.