Posted 24 February 2016 - 03:37 PM
Posted 24 February 2016 - 03:52 PM
We've abandoned a wood burner as it would be far too powerful for our needs and doesn't align with our ambitions for the build (low energy, simple, etc).
We plan on putting a fire pit in the garden for special occasions and briefly looked into faux fires before deciding they were a little naff.
Edited by JonoMarshall, 25 February 2016 - 09:56 AM.
Posted 24 February 2016 - 04:22 PM
Posted 24 February 2016 - 04:27 PM
Posted 24 February 2016 - 04:35 PM
Posted 24 February 2016 - 05:02 PM
Posted 24 February 2016 - 07:38 PM
I am having one ethanol fire as it was the only way to have a large fire with a low heat output.
If you fancy a stove, Stovax make a range of gas stoves with 2-3kw outputs. They can also have rear exit flues which save considerably versus long vertical flues. You should be able to get one installed all in for less than £2000. I too discounted electric fires as too fake and decided that wood burners would have too high an output and were less easy to control. I decided that even 2-3kw may be too high an output but I am willing to risk it, they will be in very large rooms.
An ASHP is unlikely to be cheaper to run than gas especially for heating hot water also which reduces the COP. It depends to some extent on your heating needs, but the much higher cost of electricity than gas offsets the higher efficiency.
Posted 24 February 2016 - 07:49 PM
Posted 24 February 2016 - 08:21 PM
Posted 24 February 2016 - 08:29 PM
Posted 24 February 2016 - 08:39 PM
On paper it sounds good and the stove installer has installed a couple in low energy homes.
Posted 25 February 2016 - 06:29 AM
Unlikely that, in the times you actually need heating (winter), the PV array will make a meaningful contribution to running the ASHP
If you're on the gas grid, use it and focus on using as little of it as possible. The answer to the energy problems of the future lies not in using more "renewables", but using less energy
Might also need to work really hard on getting the wife to drop the "cave must have fire" thinking. Occasionally romantic, but predominantly prehistoric, messy, smelly, antisocial and carcinogenic. I don't have anything against them specifically, but they don't really have a place in the home you're looking to create
Posted 25 February 2016 - 07:28 AM
As you are doing a new build, PV is a no brainer, it can be cheaper than a roof.
Try not to get hung up on the FiT and RHI rates, they are purposely low to encourage the renewable industry to become competitive with fossil fuel alternatives.
What we do know is that fossil fuel prices will go up again, which also puts the price of electricity up. We also know that we are not getting any new nuclear or coal fired generation in the foreseeable future (I think EDF will back out of Hinkley in June or July).
So this leaves gas, which there is plenty of it.
I would forget the fireplace, it will just be a cold lump of iron that sits in the room. Use the money you save to go to a pub with a fire, think of it as free alcohol.
If you do a search on here you will find that all your questions have been answered, takes a bit of hunting around though.
As other have said, estimate your energy usage first, then find the technology to suit.
Posted 25 February 2016 - 08:17 AM
The only comforting factor is that I'm not alone. We had an open day and one lady who visited had completed a house to a similar (just slightly poorer) insulation and airtightness specification to our own. Against the advice from the builder she fitted the smallest available room-sealed wood burning stove in the living room (I'm pretty sure it was one of the tiny ones made for canal boats, with a room seal kit). She lit it the Christmas before last for the first (and only) time. Shortly after lighting it the temperature in the room became too hot for anyone to stay in it. They had to open all the windows and retire to the kitchen until the stove had burned itself out. She's never used it since, as it puts out far more heat than the whole house needs even in the very coldest weather we ever get (although she's a few miles away in Hampshire, so probably doesn't get weather as cold as we get on the Southern edge of Salisbury Plain).
At a guess, our house need barely more than 500 W of heat on the very coldest days, and much of that comes from the occupants and incidental heat lost from appliances. The heating only needs to come on for an hour or so every few days, and even now we are getting house over-heating by late afternoon n sunny days, with no heating at all. I've had the air cooling and floor cooling come on a couple of times this week when the house has got over 23 deg C from just a bit of low-angle sunshine.
Edited by jsharris, 25 February 2016 - 08:18 AM.
Posted 25 February 2016 - 04:05 PM
The PV array is going up anyway as that was already specified to bring the SAP calculation up with the gas central heating.
Posted 25 February 2016 - 04:08 PM
Posted 25 February 2016 - 04:21 PM
A friend of mine did a large survey about ASHP and what people thought of them. Most did not have a clue what he was talking about, even though they used them.
May I ask who this local firm is, you can PM if you want.
Posted 25 February 2016 - 04:22 PM
Posted 25 February 2016 - 04:24 PM