CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Garage Heater Planning

TerryD

Mildly demented...
 Premium
Joined
Jul 27, 2008
Posts
5,843
Reaction score
4,182
Location
Covington, Va
I have no heat in my garage. I'm used to working under a carport in the winter, so you'd think I'd be satisfied with walls and doors, but I've grown accustom to working in the warmth when I can as my job is mainly out doors.

My first thought was a wood stove. Simple, easy to use, good heat, fairly inexpensive. However, I have 5 trees on my acre of land, no chainsaw, no where to cut wood, and I don't care for splitting and stacking very much. I'm not completely against doing it, but I'd rather do something else if I can.

My next thought was used oil. I have 5 running vehicles, two of which see off-road use and fluid changes are common. So, instead of hauling that somewhere to give it away, why not use it for heat? In looking for ideas, I found this: http://journeytoforever.org/biofuel_library/ethanol_motherearth/me4.html It's a very easy to build unit and very cheap. Both pluses! :waytogo:

Now, it will create alot of heat and with the ceiling fan, it may do pretty good. But, I'd like to have some way to get the heat spread out in the garage better. I've had two ideas on this. First is to enclose it in a sheet metal box and add a blower motor to put the heat out in the shop. Basically the fan mounted low on the box to move air up and then the vent on the top of the box or maybe even a little ducting to put it out in two or three different places in there.

The second is to turn the heater into a boiler. Simple, maybe 10lb of pressure, if that and a couple radiators mounted above the drum. I was thinking that having the radiators drain back into the drum as the water condensed could eliminate the need for a feed water pump and level control.

In essence, the steam would rise from the drum, into the piping to the radiators. As the steam condensed in the radiators, releasing heat into the garage, the water would drop to the bottom of the radiators and drain back into the bottom of the drum where it could be re-heated. A 15lb pop-off mounted outside the building where no one will be burned in case of an over-pressurization and prevent an explosion.

My experience with steam boilers is mainly on the control end. I can pretty well lay out a full electronic control system, but that will require power and air and alot of expensive parts I don't want to have to buy. I'd like it to be a light it and leave it kinda deal where I can spend my time working instead of tuning and adjusting a fully automated system that I'll only need for a few hours after I get it going.

So, any thoughts on this would be appreciated. Should I just go simple with the box and blower or is the boiler feasible? :dunno:
 
Those are pretty neat setups. I'd like to stick with something with fewer moving parts. Simple and cheap. That's why I like the pot burner setup. Still trying to find something to make the body out of right now though. Julie would be mad if I pulled the new water heater out of the house for this. :whistle:
 
I've been heating my shop with waste oil for about 4 or 5 years now. I built a burner based on this one on MEN http://journeytoforever.org/biofuel_library/ethanol_motherearth/me8.html

Since I deal in all sorts of wood and pellet stoves, I had defunct pellet stove with a good heat exchanger, so I retrofitted the burner in that fire box. It worked good, although since I had to burn 1+ gal per hour, that took it's toll on both the firebox and the burner pot. I would go thru 2 burner pots a season and was constantly repairing the firebox. You do still have to keep an eye on this type of burner. In my experience, this burner could actually completely melt down my firebox. Had a scary situation a few times :eek1: Due to the design of this type of burner, and depending on the dirtiness of your oil, you will have to shut it down every 8-12 hours of burn time, and clean out the burn pot. The plus side is that this is a fairly simple design, and easy to build with only a combustion fan requiring electricity.

As of about half way thru last winter, my firebox was toast....beyond repair any further. I had bought the Murphy's Machines plans a couple years ago, but never seem to have time to build it. So now I am getting by with very little heat (propane burner) while I work on the Murphy's Machine style burner, a little here and there.

I have contemplated building a waste oil fired boiler for a while, in fact Murphy's Machines now has plans for one. But right now I don't have time for that, I just need to get some heat going ASAP

If you need any help or advise on an oil burner let me know.
 
Your post got me looking a little bit and I found this:

 
Last edited by a moderator:
I'm going with a natural gas unit like a Reznor or Hot Dawg. Have a guy coming over Tuesday for another estimate
 
I've considered propane heat. We don't have natural gas run out that way as far as I know plus some friends have it and its kinda pricey. I also considered a commercially available oil heater but then I found the waste oil ideas.
 
I'm actually figuring out how to heat my garage (about 650 square feet) at this time also. I started thinking about a woodburning stove, as hardwood is cheap here and I like fire...but I decided against it because I want something where I can just flip a switch instead and I want something with no footprint (space is precious out there).

I'm going to go with one of these: http://www.mrheater.com/product.aspx?catid=50&id=41

They have them for natural gas or propane. They require no electrical power. They have no fan to make noise - they work on the same principal as the sun (radiant infrared heat).

A buddy of mine in northern Illinois (winters colder/harsher than Virginia where you are) has one in his 800 square foot garage - he loves it. He sets the thermostat at 55°F for unoccupied "standby" and he can get it to 75°F in about 15 minutes when he goes out to work. He said it adds about $5/month to his gas bill.
 
That looks like it works pretty good. That is a similar principle to the one I built before, but without the build up problem. I don't know why I haven't looked on You Tube for waste oil heaters, I do for many other things. I was looking at some of the other ones on there. The one called 'The Babbington burner' is much the same as the design Murphy's Machines sells, except there's is verticle versus horizontal.

If you do go with a waste oil heater, you will want some sort of water seperator on your storage tank. That is more important when you start getting oil from other people. There is almost always a certain amount of anti freeze and/or water in the oil.

Your post got me looking a little bit and I found this:

 
Last edited by a moderator:

That looks like a neat set up. The reason I'm going with the waste oil system is because of the amount of oil changing I usually do. During a year I think I'll be able to come up with enough to run all winter in the shop with just our vehicles. I'm sure I can get another source around town for it as well.

That looks like it works pretty good. That is a similar principle to the one I built before, but without the build up problem. I don't know why I haven't looked on You Tube for waste oil heaters, I do for many other things. I was looking at some of the other ones on there. The one called 'The Babbington burner' is much the same as the design Murphy's Machines sells, except there's is verticle versus horizontal.

If you do go with a waste oil heater, you will want some sort of water seperator on your storage tank. That is more important when you start getting oil from other people. There is almost always a certain amount of anti freeze and/or water in the oil.

I thought it was pretty cool. I'm not focusing on the burners with a fan though. I'd still like to keep it "natural draft" instead of using blowers on it, at least for ignition purposes. Partly because I'm trying to do this cheap but mostly because I like things as simple as possible.
 
While it is possible to burn waste oil with a 'natural draft' I think you would be happier with a fan forced combustion. You can still have a gravity feed for the oil, but the fan forced combustion creates more heat and less smoke. You don't have to use a big expensive fan. I used a Dayton 4C443 fan which puts out 75 CFM free air. That is what I used because I had a couple laying around, and it worked for my burner.
 
ever consider a kerosene heater? fuel is easy to find and relatively cheap. they don't take up much floor space. they're very fuel efficient. no venting is required. you can put a no-electric fan on top to circulate the air better.
 
I picked up a camp stove today I've had in our old basement for years but never used. I'm going to build a oil burner assembly I have the plans for but set it up in the camp stove. Something like this:

6a8ecdfc-adeb-46fd-a39c-a0a920211672_300.jpg


Pull the eye out of it and let the air intake run down through it. May line it with fire brick if it starts turning red on me much. Possibly add a blower fan to it to increase output if it works out good. :waytogo:
 
Planning on going to look in junk stores Friday to find the frying pans to build my burner pot. Also gotta get some plate cut to run the flue out a window in back. :waytogo:
 
I considered that, but you need one about 2" smaller than the other. I've not got all my spare bits of truck moved here, so all my drums are down there. Also, I'm not sure the thin flange of them would hold it's shape when subjected to the heat these designs of heater supposedly create. :dunno:
 
None yet. People want some ridiculous prices for old frying pans around here. I've decided I'm going to the local fab shop and see what kind of heavy wall 4-5" pipe they have. Then weld a 1/4" plate on them to make burner pot pieces. With Christmas and everything, my project money dropped pretty quickly. Just so much other stuff going on, I get caught on tangents. :whistle:
 
Top Bottom