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Post by martinm on Sept 9, 2018 0:14:30 GMT -8
Hello I am working on plans for a double bell masonry heater with a batch box. Intention is to heat a two story woodframe house ( 2 x 65 m2). House is designed with stove centrally located on first floor , adjacent to the wall of a staircase. Unfortunately my friend (and client ) resisted with the idea the mass heater to be fitted with a water heat exchanger , similar to this one: heatkit.com/html/lopezs.htm so we could heat the second floor with hidronic radiators. Instead my frend insisited that "we should keep it simple " and instead of hidronic transfer of heat we should think about transferring heat to the second floor with air ducts- somehow .... here is my last update before the idea for the ducts : donkey32.proboards.com/thread/2171/double-masonry-heater-suggestions-welcomeI am not confident that ducts are good solution. I would appreciate any input and info on systems - mass heater , coupled with ducts carying hot air to other floors spaces. Regards Martin M
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Deleted
Deleted Member
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Post by Deleted on Sept 9, 2018 6:39:07 GMT -8
I grew up in a two-story house heated by air ducts from a central fire place. I think it is a bit larger than the 2 x 65 m2.
The house has three living rooms on each floor. A large kitchen on the first and a smaller kitchen and the bathroom on the second.
Only kitchen and bathroom had additional stoves for cooking and hot water. Winters can be very cold here and were much colder 50 years ago. All rooms were nice warm, even at -20°C/-4°F or lower outside. .
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Post by peterberg on Sept 9, 2018 11:00:11 GMT -8
The idea of moving hot air by means of air ducts presumes there is hot air to move from room to room. A double bell batch rocket mass heater won't provide that in significant quantities since most of the warmth is delivered in the form of radiation. It would heat up the air to some extent but quite certain not up to usable levels.
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Post by Dan (Upstate NY, USA) on Sept 10, 2018 6:10:48 GMT -8
I heat my house this way. My heater is in one corner of my house. So I cut holes in the top of the downstairs rooms walls at the ceiling for hot air going in. Screened holes in the doors for cold air return. As for the upstairs I use a short curtain at the entrance of the stairs to restrict hot air going upstairs. This forces the other rooms to fill up first with warm air. plus.google.com/u/0/collection/UUqFnB
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Post by peterberg on Sept 10, 2018 7:19:46 GMT -8
You are right Daniel, it works in your house with your heater which is a J-tube with a barrel. But Martin plans to build a double masonry bell. Ergo, no barrel so there won't be quantities of hot air to move.
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kpl
New Member
Posts: 47
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Post by kpl on Sept 10, 2018 21:02:12 GMT -8
Is there enough space to build an air channel through a masonry heater? That should provide hotter air, and even would be adjustable.
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Post by Dan (Upstate NY, USA) on Sept 11, 2018 5:42:55 GMT -8
I only fire it twice a day in the winter.
So for the other 22 -23 hours the house is being heated by air currents coming off of the bench.
When I come down stairs in the morning and I get past the curtain that hangs in the entrance of the staircase the heat radiating off of the masonry (the barrel is cool to the touch) is hitting the walls, people, furniture. This stuff in turn heats up the air in the living rooms and air currents to the other rooms can literally be seen if you light some incense going into the hole near the ceiling or the cold air returns in the door.
The whole house serves as a second bell system.
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Post by fishalive12345 on Jul 15, 2019 8:50:47 GMT -8
Hi Wolf and Karl, I'm interested in the size of the ducts and holes. I imagine they need to be above a certain diameter in order to work.
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Post by Dan (Upstate NY, USA) on Jul 17, 2019 1:10:07 GMT -8
Mine are 12" by 12"
Returns in the doors are screened (for privacy) but much larger like 12 x 30 inches.
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Post by fishalive12345 on Jul 20, 2019 3:30:31 GMT -8
Thanks for the information. Bigger than I was hoping for.
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Post by Dan (Upstate NY, USA) on Jul 25, 2019 8:51:27 GMT -8
Yeah without using fans the openings need to be that big...
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Post by Jeremy67676 on Aug 13, 2019 23:38:01 GMT -8
Currently I have been looking for a ventilation system for my 8 x 12 house. I have at least 15 plants in there, so I will need good ventilation, but the doors will be closed unless we get a heat wave. Found some info here texair.eu/ but still need real life experience.
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Post by mladen on Oct 1, 2019 5:33:45 GMT -8
Hello, I was thinking about using different heat source and try to store it in massive walls. Source would be solar heater, as I have found a lot of interesting was to make it in DIY. e.g freeonplate.com/diy-solar-panels/Does anyone have some experience in such attempts? Any thought would be appreciated. Thanks. Mladen.
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Post by gadget on Oct 1, 2019 19:31:58 GMT -8
Hello, I was thinking about using different heat source and try to store it in massive walls. Source would be solar heater, as I have found a lot of interesting was to make it in DIY. e.g freeonplate.com/diy-solar-panels/Does anyone have some experience in such attempts? Any thought would be appreciated. Thanks. Mladen. here is a good place to start www.builditsolar.comI am planning on building a bunch of solar air heaters some time..some day. I have a nice stack of old sliding doors just waiting. I'm going to go the "window screen" style boxes. They are very efficient and easy to make. Goal is to heat air but then have a radiator that I can run the air through to heat water. I actually want to primarily heat water with the air as an option. I keep going over many many designs and ideas on how I could build cheap dependable solar hot water panels cheaply and came to the conclusion the best route is to heat air then exchange it to water via a radiator. Basically an air/water hybrid system. The window screen based panels are suppose to work better then the can heaters...FYI -Gadget
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Post by Orange on Oct 5, 2019 11:09:34 GMT -8
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