RE: [CAD_CAM_EDM_DRO] OT: Intro + Q:Selecting workshop heater

John,

Thanks for the tip on the Modine Hot Dawg. It is exactly what I am looking
for. I was looking at the unit heater offerings from Grainger, but the Hot
Dawg give more features for less money than the Grainger units and the form
factor is much nicer. I called the Green House catalog company your post
referred to and asked about what I need to order for high altitude use and
the cost. They said they would call back with the details, but they had to
call the manufacturer to get the scoop. Did you buy the "special" vent cap
that they offer or did you get one locally?

Tim
[Denver, CO]

>
> Hi,
>
> I went through looking for a heat source for my shop a couple of
> months ago.
> I wanted oil fired due to cost per btu, but ended up with
> propane. With the
> current pricing of oil maybe not so bad a decision. I was also able to
> negotiate(really whined a lot) and am paying a commercial rate, $1.35/gal,
> which is $0.25 less than what I was paying for a pretty gas
> fireplace insert
> hookup.
>
> As far as the actual propane unit heater I ended up with, it is a
> Modine Hot
> Dawg 75,000btuh input/ 60,000 output. My heating demand is nowhere near
> that high, but I keep the shop at 41f and turn it up when I am there. It
> generally takes 20-30 min to get it to 65f. I purchased the unit through
> http://www.igcusa.com/. It is $545, but you have to add $70-100 for the
> thermostat and the bvent and probably another $70-100 for the propane
> install & hookup by your propane supplier. Yeah I know, but that
> is what it
> really costs.
>
> This unit exhausts all product of combustion outside the shop, so moisture
> buildup is not a problem. It is not designed to bring outside air in for
> its combustion, so you do suck in OA through whatever cracks there are in
> you building.
>
> It has worked very well, uses a hot plate for ignition, forced
> exhaust, has
> all of the automatic safeties. The only problem I had with mine was the
> balance of the fan blades. The unit had a loud low freq vibration, fan
> guard shook pretty good. I took the fan off, 4 screws, and measured the
> heights of the fan blades a both ends of each blade, both front &
> rear, and
> bent all blades to be the same. This reduced the vibration
> remarkably, but
> there was still some fan guard shake. I found that by hanging a 5 pound
> weight(scrap) from the fan motor housing that was gone too.
>
> Joe Fahy
> Snowy Central PA
>
> ----- Original Message -----
> From: "Jon Anderson" <janders@...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Tuesday, December 19, 2000 11:22 AM
> Subject: Re: [CAD_CAM_EDM_DRO] OT: Intro + Q:Selecting workshop heater
>
>
> >
> > Marco,
> >
> > I use a propane heater when it gets too cold. Spend a couple extra bucks
> > and get one with the piezo ignitor.
> > I did have one bad experience once with the first one I bought.
> > Apparently some small particle of matter got stuck in the regulator and
> > when I lit it off, I found my face about a foot away from a 4' blow
> > torch! I think this is a pretty rare occurance, but just to be safe,
> > keep your hand on the tank valve when starting it. It's amazing how fast
> > one can close that valve when motivated...
> >
> > Jon
> >
> > Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> >
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> >
>
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for
> the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
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>
>