Sean Kettle

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since Oct 07, 2013
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Recent posts by Sean Kettle

Ah, something a bit like this perhaps -



- http://heatkit.com/html/bakeov11.htm
1 day ago
Hey y'all,

Thinking of a simple way of cooking direct with PV in the summer - ie, DC, no batteries or inverters. This concept seems simple and scalable, has anyone tried anything similar?



It would be great to incoporate a hotplate into something like this, with insulated covers like an AGA or Rayburn...



Posted this in the Solar forum but getting little traction there. Had wondered if anyone has incorporated this approach with a rocket mass heater/stove - dumping energy from PV into the thermal mass?
3 days ago
Hey y'all,

Thinking of a simple way of cooking direct with PV in the summer - ie, DC, no batteries or inverters. This concept seems simple and scalable, has anyone tried anything similar?



It would be great to incoporate a hotplate into something like this, with insulated covers like an AGA or Rayburn...

4 days ago
Thanks for the breakdown Orin! Great points.

The water would indeed be pumped through the pipe.

I will keep on pondering
1 year ago
Thanks for your comments, lots to think about.

I would run the loop from a thermal store - heated by a stove and other inputs.

I had imagined this approach would function like a trombe wall too - but perhaps I'm missing something. The wall is lacking the thermal mass in a trombe - but wouldn't the cavity heat up like a "bell" - and create a convection current?

1 year ago
Bit of a mouthful maybe.

Designing a single story long house with a solid fuel stove - looking for a way of getting heat to the rest of the building. There's an internal, non-structural wall that cuts through the centre. It could be double stud, with heated pex piping inside and adjustable top and bottom vents to create a convection current in adjoining rooms.

...any thoughts as to why this might be a bad idea?



1 year ago
Great - thanks!

No freeze thaw cycles to deal with thankfully.
1 year ago
Great stuff, thanks. I think I'll try a few test plots - rototill lime in one, cement in the other...
1 year ago
I am researching options for low-cost flooring in a new barn. Looking for an alternative to concrete. I have read of people using lime to stabilise the soil for this purpose.

The ground at the site is very sandy and free draining - please see the following video and a photo from a "soil in a jar" test.





I'm familiarising myself with Tataki δΈ‰ε’ŒεœŸ and "Doma"

Could lime be dug in and compacted to create a relatively stable, breathable floor for livestock?

Cattle would be bedded on rubber matts with straw and mucked out daily.

Related - lime aggregate extolled as livestock bedding in the US.

Keen to hear if anyone has had success with this approach and how appropriate it might be given my ground conditions.
1 year ago

Dillon Nichols wrote:I also like it! But I don't like steps.

Hmm. What if you left the mass raised in the center, but built raised wooden floors in other rooms to bring them to the same level? Lot of wood...

What are the downsides to leaving the floor level and using the entire footprint of the house as the mass? More insulation/digging..



It would be great to avoid steps...

Should have mentioned - the idea of raising the platform as also so I could install the stove at an accessible height - it wouldn't have to be below ground level.

Alternatively, all the rooms could be raised, whilst the kitchen with the stove could be "sunken".

There's probably a simpler solution, maybe heating the central wall hydronically or just opting for more conventional underfloor heating...
1 year ago