Rant about Home Depot

The Junk Drawer is for those Off Topical discussions where we can ask questions of the community that we feel might have the ability to help out.

Moderators: Harold_V, websterz

spro
Posts: 7059
Joined: Mon Feb 20, 2006 11:04 pm
Location: mid atlantic

Re: Rant about Home Depot

Post by spro » Sun Oct 14, 2018 2:42 am

We have investigated Sterling Engines or similar to generate electric power. It also expels heat and there is a boiler involved. During winter that heat could be piped radiant inside, quite remote from the engine. I guess everybody knows this stuff.

User avatar
tornitore45
Posts: 1568
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: Rant about Home Depot

Post by tornitore45 » Sun Oct 14, 2018 6:50 am

and an additional 2,560 feet of shop.
Whoa that is what a dream house is!
Mauro Gaetano
in Austin TX

User avatar
liveaboard
Posts: 535
Joined: Sun Dec 08, 2013 1:40 pm
Location: southern Portugal
Contact:

Re: Rant about Home Depot

Post by liveaboard » Sun Oct 14, 2018 7:45 am

Harold, you can buy wood fired furnaces ready made; all the R+D done by someone who's making many units.

As far as I understand, there are 2 basic types; one that attempts to vary the heat output to meet demand and is very inefficient [sometimes called a 'smoker'], and a high efficiency high temperature type that burns clean but only runs at near full power.
The idea is to have a big hot water tank to buffer the heat output.

I've done some research + experimentation towards building a stratified heat storage tank, if anyone's interested.
I haven't built it though.
I have friends and family who bought lovely retirement houses in the countryside, but I don't understand why you all choose places that get so cold in winter!

rrnut-2
Posts: 431
Joined: Mon Jul 18, 2011 7:40 pm
Location: New Hampshire

Re: Rant about Home Depot

Post by rrnut-2 » Sun Oct 14, 2018 8:51 am

My shop is heated by oil only. I used to have propane, but as it turns out, the oil is cheaper. The house has an oil furnace, a pellet stove and a just installed heat pump. I went with the heat pump for the air conditioning in the summer and a heater for the fall. So far, its doing very well and doesn't seem to be that expensive. My only problem with oil is the oil supplier down the street, who is the cheapest by the way, I pay cash before delivery and they still send me a bill and expect me to pay, again!

I looked into the outside boilers, but they are a lot of money for a short life span and use a lot more wood than a wood stove.

Jim B

John Hasler
Posts: 966
Joined: Tue Dec 06, 2016 4:05 pm
Location: Elmwood, Wisconsin

Re: Rant about Home Depot

Post by John Hasler » Sun Oct 14, 2018 8:59 am

Does oil remain cheaper when you take efficiency into account?

curtis cutter
Posts: 321
Joined: Fri May 18, 2012 11:46 pm
Location: Curtis, WA

Re: Rant about Home Depot

Post by curtis cutter » Sun Oct 14, 2018 9:17 am

I found this chart and it allows you to enter your local price for each fuel type.
https://coalpail.com/fuel-comparison-ca ... me-heating
Gregg
Just let go of it, it will eventually unplug itself.

Harold_V
Posts: 17143
Joined: Fri Dec 20, 2002 11:02 pm
Location: Onalaska, WA USA

Re: Rant about Home Depot

Post by Harold_V » Sun Oct 14, 2018 2:53 pm

rrnut-2 wrote:
Sun Oct 14, 2018 8:51 am
I looked into the outside boilers, but they are a lot of money for a short life span and use a lot more wood than a wood stove.
Because I heat with a hydronic system, an outdoor boiler is considerably more complicated. For one, it's a closed system, which I have yet to find being made commercially. In order for this type of system to operate without issues, it must remain closed. That would mean a heat exchanger would be required, or the auxiliary boiler would have to be built accordingly.

As the concrete floor in the shop is quite thick (6¼"), with some clever thinking it could be used to absorb excessive heat. It takes hours to raise the temperature, so I already have a reasonable way to store heat while a wood fired boiler cooled down.

How does one feed wood (not pellets, as they are not cheap), and control heat output? My thoughts have been to keep the fire relatively small, but intense. A fan for combustion, to ensure clean burning.

H
Wise people talk because they have something to say. Fools talk because they have to say something.

Harold_V
Posts: 17143
Joined: Fri Dec 20, 2002 11:02 pm
Location: Onalaska, WA USA

Re: Rant about Home Depot

Post by Harold_V » Sun Oct 14, 2018 3:03 pm

John Hasler wrote:
Sun Oct 14, 2018 8:59 am
Does oil remain cheaper when you take efficiency into account?
Depends on the type of boiler. The one I installed is high efficiency, but that's a relative term. The stack temperature is still quite hot, unlike the high efficiency furnaces that vent with plastic pipe.

Propane btu's per gallon: 91,000
#2 heating oil btu's per gallon: 138,500

H
Wise people talk because they have something to say. Fools talk because they have to say something.

earlgo
Posts: 1302
Joined: Sat Jan 29, 2011 11:38 am
Location: NE Ohio

Re: Rant about Home Depot

Post by earlgo » Sun Oct 14, 2018 3:58 pm

My son in law supplemented his oil furnace with a pellet fed stove in the living room. It works better for not so cold days. He lives in N.J. but that is another story.
Somewhere I lost the transition from HD to heating. Did I fall asleep? :)

--earlgo
Before you do anything, you must do something else first. - Washington's principle.

John Hasler
Posts: 966
Joined: Tue Dec 06, 2016 4:05 pm
Location: Elmwood, Wisconsin

Re: Rant about Home Depot

Post by John Hasler » Sun Oct 14, 2018 4:17 pm

We're paying $1.22/gal for propane: $0.0000134/btu. Oil is $2.96/gal: $0.0000214/btu. Easy decision.

User avatar
tornitore45
Posts: 1568
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: Rant about Home Depot

Post by tornitore45 » Sun Oct 14, 2018 5:21 pm

Did I fall asleep?
These threads take a life of their own...
From fasteners availability to hardware store density. City versus open country versus the deep boonies
From long travel for hardware to long travel for heating fuel
From heating fuel is a very short step to heating efficiency

Now you have it

Anyway the new topic is more interesting than the original.
Mauro Gaetano
in Austin TX

curtis cutter
Posts: 321
Joined: Fri May 18, 2012 11:46 pm
Location: Curtis, WA

Re: Rant about Home Depot

Post by curtis cutter » Sun Oct 14, 2018 6:52 pm

I have propane to heat my shop but I also use warm air from my common wall south facing green house.

To regulate the running of the greenhouse air system I have a 10" stick of ABS pipe sealed at one end in both the greenhouse and the shop. On the other end I reduce each tube to a 1/4" hose barb fitting. Each of theses tube runs to a pressure switch that compares pressures. Any time the tube in the greenhouse is warmer than the one in the shop, the damper opens and the fan runs due to the greater expansion of the air in the warmer room.

I also have an air inlet on the shop floor into the greenhouse that allows cold air off the floor into the greenhouse when the fan runs.
Gregg
Just let go of it, it will eventually unplug itself.

Post Reply