Pellet heads!! What's up today?

Sounds like a nice place to have a meal Larry & G - looking forward to having a meal there, next time we're near civilization.

That's also a good price - usually around $200 retail @ Amazon .. Last 1500 PFC for less $$$ I bought was about $135, heavily discounted, @ Amazon during one of their promotions IIRC.. But that was a few years ago, not recently.

* The wattage/run time difference (900w vs. 810w) between the 1500 vs. 1350 is minor (same internal electronics, smaller batteries, again IIRC) - the 1350 is a better value, @ that price.

The 1000PFC struggled during a power 'blip' last week w/ the home entertainment equipment here - but I don't think that was the UPS's fault, rather the power quality in the line (high wind, tree branch hitting wire somewhere down the road repeatedly for 15-20 secs..) and the equipment it was protecting (the plasma TV here is a power hog) - so if protecting high-value equipment, I would -always- go one size up in wattage, to ensure good availability of reserve, in that case. * For the extra $25 or so, it would be well worth it to me, for peace of mind here.

I've always used the " 75% " rule-of-thumb when sizing electrical power / UPS equipment, any startup / surge (wattage) load exceeding that will cause many electronics/motors/etc. to struggle on a power loss event, regardless of equipment brand, this has worked well for me over the years. Ideally, I try to size as close to 50% rating as possible, to allow for sufficient time for generator startup / equipment shutdown, etc.

I've also had more than a few folks debate that over the years, but bearing in mind a typical power loss event is 'adverse' (like above), and these UPS units are not "data-center" grade / line-interactive, the larger coils, etc. in these small units provide additional voltage stabilization during on/off or brownout events, it really makes a difference down-line to the equipment being protected.. * For the same reasoning most copiers/multi-function units have a line voltage stabilizer in-line, between the outlet and unit being protected.

Hope this helps,
Rob

 

I have an APC BE750G for each Harman so they will shut down gracefully in case of a power failure, but they won't do anything besides that. If that 1500va will let the stove run, I'm curious how long that would actually run the P68 for? And in that case, can it be run in-line with the 750 so that once the 1500va runs out of juice, the stove will still shut down gracefully? I know, sounds complicated but I am not in for a bank of batteries and always trying to learn what options are out there. Haven't lost power for maybe a total of 3 hours in the 3.5 years I been here, so not really worried about extended run time and certainly not worth it for me to install a genny.

 

No, wouldn't recommend that B - having multiple UPS units 'in-line' can cause the lesser unit to overheat/fail. re: run time, would 'guesstimate' 25% - 40% longer run time vs. the smaller unit, due to the stove(s) having motors / based on current draw.

 

So let me clarify the "run time" for the smaller unit. It doesn't have a pure sine wave and the Harman stove picks up on that so shuts itself down gracefully (it "knows" it is on battery). So the unit I have is not meant to "run" the stove, but to allow it to shut off the auger and pulse the exhaust blower to make sure that the smoke goes out the pipe instead of into the house.

 

That's exactly right B - the sole function of the UPS is to ensure equipment protection -> proper equipment shutdown, until ("120v" in our case) line voltage is restored, from utility power restoration, or (alternate) generator power.

 

If the bigger pure sine wave ups was plugged in the wall and the smaller non sine wave unit is plugged in to the pure sine ups. I think it would work. The smaller ups will not know the power went out until the bigger ups shut down. Then your Harman would shut down.
My 1500 says it will run my Englander for right around an hour IIRC

 

so, i woke up at 2 or so to pee and didn't hear the stove downstairs running.... something not right, with temps in the low 20's the stove should not shut down. bathrobe and slippers on, temp downstairs 60 degrees, stove cold and still full from my fill up at 10pm. no flash code, that's odd. rare, but the stove had a bridge, probably from a substantial amount of sawdust that got sent to the auger when i filled it and perhaps some longer (as in longer than the MWP shorties i've been burning, but not over 1") EZB blend from a damaged bag i put in. cleared the bridge with my burn pot scraper and off we go!

the sawdust tends to build-up in the 52I due to the construction of the insert and my filling it morning and night, so it never gets short of pellets. i guess i got a little too much sawdust in the auger.

 

Just ordered KC some kibble it is $8/bag cheaper via Amazon now the fun begins I was nice and did not ask for 2 day shipping. Will kitty starve???

 

That is exactly what I was looking for thank you IHP!

 

Don't worry I wouldn't do anything to hurt kitty. The *zon shipment will be refused if it doesn't make it and kitty has at least three weeks of kibble left.

 

I don't recommend this IHP only because of issues I've seen at a few customer installs over the years where one or both 'ganged' UPS units have had failure when they exhaust battery life - it's harder on the electronics for the units when struggling to provide 'line' voltage, when the batteries drain. (Ended up replacing a few older UPS units, that were run ganged / in-line.) * But will qualify that was with older APC units, going back several years ago now, and strictly protecting IT equipment, no stoves/motors involved.. UPS quality has improved, and prices really haven't increased much over the years.

That's the same run time here w/ the Francesca with the 1500, about an hour, which I think is pretty good - considering the # of motors operating in the stove.

 

I love this feature, I wonder if there is a way to wire my cab50 to do the same.

 

It does this automatically? Is it something on the particular model APC?

 

Yeah, completely drawing the battery is not recommended. But for the amount of time that may happen, I wold risk it. I would like to believe the electronics are smart enough nowadays to shut down before damage is done to the electronics. But I am not positive.

 

bogieb I will Daisy chain my two pure sine wave units and let you know how it goes. I will do it tomorrow morning when the wife is away.

 

Maybe....maybe not