Pellet boiler with silo

Has anyone installed a large pellet boiler with a large silo 4-6m3?

This type of thing:

We had a meeting yesterday with the people who assess energy grants and they suggested these are by far the cheapest to run.

This was the source info of cost (and CO2) per heat source) : Argus de l'énergie | Ajena

If anyone has one I am interested to know more about them.

The idea is that the hopper can be filled once a year and they self fead vis a pump.

They advised against heat pumps due to high initial cost, running cost and expected life of max 12 years.

Prior to this I had been considering air source or ground source heat pumps.

:scream::scream::scream: is that for a Chateau :face_with_peeking_eye:

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Well he’s got the underground tunnels to consider…

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:laughing::laughing::laughing: that is huge.

I didn’t intend to heat those!!

But it could be an easy way to add in-ground heat pump!

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Just a thought… that pellet boiler presumably needs electricity to make work properly ??

A backup (generator) might be an idea… just in case.

I’m curious (and naturally tend to the cynical), do they also supply heat pumps or only pellet boilers

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I think you know the answer to that question :wink:

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I wonder where they got that figure from? Pretty much all the stuff I’ve read has said they have on average a life span of between 15 - 20 years, and some recent articles have suggested up to 25 years. That’s significantly different to a max of 12 years.

A case in point: Installer une pompe à chaleur, un soulagement pour votre portefeuille ?

image

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No they don’t supply any - they just made a case for the pellet boilers.

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My main worry would be how do I prevent that quantity of pellets from absorbing moisture from the air over the course of a year?

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How many rooms do you need for a pellet boiler that size.

I know a couple of people who’ve had large granule silos; both solutions were rather more elegant than the one illustrated.

One person uses a former underground oil tank that was beneath the courtyard between the original farmhouse and the large barn conversion in which they now live. Can’t remember how their granules reach the boiler.

The other person was restoring a hamlet of about a dozen derelict buildings, one of which was lined and used to store the granules, the boiler was in a small adjacent building and fed via an Archimedean screw. Both installations were on sloping sites that facilitated these solutions

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I’d suggest it’s very much a case of doing your own research to check what’s really the best solution for you, especially given the fluctuations in pellet prices over the last few years.

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Absolutely- and part of that research is why I raised this topic to gain the view of my learned friends on SF.

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Must be getting on for 10 years ago… I was part of a Group visiting a commune in a neighbouring Department…
We were given a conducted tour of a “new idea” for heating their Mairie/School/Salle des Fetes and the OAP’s Home…

A huge silo (mostly underground) was filled with “waste” wood and automatically fed it to the adjacent boilers which were pipe-linked to the aforementioned buildings.
As the commune was surrounded by woodland etc etc… it seemed a way of profiting from a never ending supply of what would have otherwise been composted/left to rot/whatever…

Presumably this was the forerunner to today’s Pellet Boilers…

It would have been a biomass boiler. When I used to live in the Creuse and the foresters had done their stuff, i.e. taking the big straight bits, the remaining branches etc (looked like good firewood to me) would be piled up ready for shredding directly into a big truck to go to the local towns communal boiler.

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thanks… it was very interesting and seemed a good./cheaper way to heat several places at once (plus hot water).

Have Pellet Boilers taken over from Biomass ???

I had a guy come round who went on about pellets, huge amount of space needed and access for lorry…took up far too much space in my barn, which is not small, after some to in and froing I have had an air/water installed, as I have radiators. Outside against a back wall, super efficient, set to 17.50° the house is at 19. They can last up to 20 years. no deliveries of anything. The advisors all try to push the product they have some association with. Pellets must be away from humidity, I expect that big black silo in your photo would keep all dry. Huge palaver. My heat pump was installed in a day and a half, and happily for me as i have dual nationality, will be paid for by the state.

Being a tax resident is sufficient for the grants - 'nowt to do with nationality.

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