With log boilers you do need a buffer so you can batch burn.
Is this the case with the central boiler? From what I understand it has a larger water jacket than other boilers and also a system of buffers which regulate air flow therefore once the water reaches its temperature it shuts down the burn until required again. Correct me if I’m wrong.
I'm looking around for a heating system for a house I am buying and interested in an outside log boiler. I have almost unlimited logs but they are all softwood, leylandii in particular. It is dry though, 15-17% whenever I have tested it.No you do NOT need a seperate buffer on the central boiler log boimass system. My central boiler is basically a boimass burner surrounded by 1500 litres of water. When the boiler goes down to 75 degrees it kicks in and heats back up to 85 then switches off untill the temp drops again. it take a few seconds to a couple of minutes to go from red embers to a high burn temp. They are very clever little boilers and work well.
Having both an angus and a CB, the CB is definetly my prefered choice. It's easier to load, seems more efficient (far less ash) firebox of logs seems to last longer, easier to light, not as fussy with fuel sizes. Just speaking from my own experience's here.
Will watch this with interest.
Looking into this sort of thing to heat a new build and have watched a lot of videos of Central Boilers on YouTube but all have been in the States, didn’t realise they sell them over here.
Will it work on anything but level ground, don’t really want it under the house?!If you’re having a new build insulate it to the max and stick a ground source system in with underfloor heating. Domestic RHI for 7yrs will more than pay for it and gives you time to research and fit another system to generate the electricity to run it after the initial 7 yrs!!
Will it work on anything but level ground, don’t really want it under the house?!
you can get the eco angus direct from poland but it is not called eco angus, it is an orlan super, the present cost of a 130kw is about £4500 plus delivery www.kotly.com
If you’re having a new build insulate it to the max and stick a ground source system in with underfloor heating. Domestic RHI for 7yrs will more than pay for it and gives you time to research and fit another system to generate the electricity to run it after the initial 7 yrs!!
Out of interest, if you guys had no RHI how would you look at the various options, ie boiler; solar, thermal etc; it would certainly sharpen the pencil with regards capital costs?
Totally agree. We have enough wood here to run a wood fired boiler and when we knocked down (most of) the old farmhouse and rebuilt it, I gave VERY serious thought to investing in a big ass boiler and even bigger buffer tank to allow a burn every 2-3 days. I even planted some biomass poplar in readiness...
Then commonsense and a recognition of my being a lazy sod made me ask the question, "do I want to go out and feed a boiler of any size in 10 years time when I was pension age and even more decrepit?" Obviously, the answer was a resounding no.
I put in a properly sized GSHP, with a properly sized ground loop running underfloor heating, and have never looked back! My only regret was in not putting in a bigger storage tank than 300l, as it would have been useful for storing hot water in the summer months when the 5kW PV dumps surplus power into a diverter which then heats a 3kW immersion heater coil in the tank! I drop the temp the HP heats the storage tank to just 35-40Cin the summer,and let the PV bring it up. I have to be carefulif I have a raft of children and friends visiting, as they soak up the hot water, so i Usually push the background temp a bit then
I am still tempted to put in a piggy back storage tank to run alongside the existing one.
Once the RHI expires, I will consider other options including a small LPG boiler to run alongside the setup as a backup system in case of power outages, but we usually manage with a genny and wood stoves in the house. I also anticipate putting in more PV for domestic use not connected to the grid, and run the heat pump from them and also dump spany are power that into the oversized storage tank. THis needs a bit of clever electrickery, but the company I use are confident they can achieve this