heat for garage/shop?

[krw]

True enough but only a fool would have a combustion furnace, stove, or other device in their home without a functional CO detector.

[Puckdropper]

[e-mail] wrote in news: [e-mail]:

True. I have had two activations of CO detectors in the last 10 years, both of which were real. They caught the issue early, long before it became a problem.

I had no idea the appliances were misbehaving (water heater and a boiler) until those detectors went off.

Puckdropper

[pyotr filipivich]

[e-mail] on Wed, 14 Nov 2018 20:52:26 -0500 typed in rec.woodworking the following:

In a ten by twelve shop (9.5 by 11.5 with the insulation) there isn't room for more than me and the cat. A wood stove is not an option, right now. I bundle up and she has a fur coat (and heated pad for sleeping on.)

Sigh. If I knew then what I know now, I'd have the shop in a different place, and ....

[pyotr filipivich]

[e-mail] on Wed, 14 Nov 2018 20:54:43 -0500 typed in rec.woodworking the following:

When drafts like those, exhaust product production is not a major concern. Now, the next question is: how sensitive do you want your detector? 100ppm? 50ppm? the least amount detectable?

[swalker]

The SEER for this unit seems pretty low for a mini-split. Wonder why. Any HVAC workers around?

[Clare Snyder]

I want the best detection possible at an affordable price. The alarm limit is a different story -and even there, very low because if you are getting ANY Co something is not working right - - -

[Unquestionably Confused]

Considering the average 12,000BTU window or through wall AC unit (at

120v) has a CEER or SEER rating of 10.5 or less, 17.2 is nothing to sneeze at. Don't recall what the 12,000BTU unit we replaced with this split system had, but our electric bill dropped and even if it hadn't we'd be happy as this is whisper (literally) quiet.

This Pioneer unit was not significantly more expensive than a top of the line thru wall unit of the same capacity. My only regret with the purchase is that we didn't start with this unit.

If you look into the additional cost involved with very high SEER rated units and computer energy savings over a 15 year period, you'll find that you're coming up at least $1,000 short. High SEER looks good, sells good, but really isn't worth it.

[Scott Lurndal]

The atmospheric fraction of CO is 0.1PPM, so you don't want your detector to be too sensitive (e.g. to the PPB).

The lethal concentration leading to a 50% death rate is 4000PPM over 30 minutes, or 5000PPM over 5 minutes.

The permissible exposure limit is 50PPM.

The recommended exposure limit ie 35PPM.

Immediate danger at 1200PPM.

[krw]

I didn't mean to suggest wood, just that propane is quieter than wood (which isn't deafening). Both have the problem of open flame, which probably isn't good where there's a lot of flammable dust.

I've had a couple of do-overs. My previous house had my shop split between the garage and the attic. It was a good workout but not very efficient. I have >2000 ft^2 of unfinished walk-out basement in this house. I learn from my mistakes. ;-)

[Clare Snyder]

I think mine alarms at 25ppm

[Martin Eastburn]

[pyotr filipivich]

[e-mail] on Wed, 14 Nov 2018 20:52:26 -0500 typed in rec.woodworking the following:

This burner "roars" when running. I makes more noise than I ever heard out of a wood stove.

[Clare Snyder]

The "salamander" type jet heaters ARE noisy and DANGEROUS. AKA "construction heaters"

[krw]

Propane? I've heard noisy kerosene heaters (salamanders) but I can't imagine why a propane heater would have to be noisy. I guess anything's possible but it doesn't make a lot of sense.

[Spalted Walt]

"roars"?

yea, I'd say that's an accurate description.

[pyotr filipivich]

Spalted Walt on Sat, 17 Nov 2018 17:40:39

+0000 typed >

What I have is along these lines:

Works real well to make coffee and take the chill off "the shack".

It is that "make coffee"feature I snagged it for.