new Vapor Fire 100 with very poor heat

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
  • Super Cedar firestarters 30% discount Use code Hearth2024 Click here
Status
Not open for further replies.
The last few days have been warmer here...40s day, 30ish at night...I've used 8 splits total the last 24 hours.
Similar results here, the other nite at 10PM I put on 4- 18" splits and a 10" on top, and 12 hrs later the house was 70 (24 outside) and had a nice bed of coals to load onto, heating a large 1867 Circa Queen Anne/Victorian style house. This with computer and blower on low-I have not moved the lower limit switch from the factory placement and leave it set at 103. It amazes me as to how quickly the blower kicks in after a reload onto coals, usually within 4-5 minutes.
 
how quickly the blower kicks in after a reload onto coals, usually within 4-5 minutes.
I would think it would kick in fast when it's made to blow 90 degree air... Mines down there on coals right now still blowing 82 degree air... That some how has to heat my house.... Good luck sealing enough to make that happen
 
The Kuuma holds a lot of wood either way. I use to put a full round wheelbarrow in my Clayton on one load. (it could have held more but I only used the front) The VF100 takes a level wheelbarrow to get it to full... In a way the VF100 has used more wood then the Clayton this year... it burned two cords so far (Nov-Dec) and never heated the house one day. That same amount of wood in the Clayton would have heated this house for a month. Not just heated I would like to add, warm like a summer day at the beach! If your house cant hold onto the heat the VF100 wastes wood too.

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.
 
Mines down there on coals right now still blowing 82 degree air...
Yeah you won't get real hot air toward the end...which works for me, let the house cool a bit before reloading...get too hot in here otherwise...not your experience thus far though I know...
 
Mine here too Ive been working on this place for 6 years or so it didn't even have running water when I got it.
Wow, that's about all we had going for us here. Sometimes we get discouraged at how neglected and damaged this house was and the money we've spent fixing it, but it would have cost a fortune to get power, septic, and a well put in on naked land. Once you add in the slab, driveway, and other amenities it wasn't a bad deal.

I have a feeling you might have R15 in your walls and maybe R19 in the attic area, especially in your addition. The Clayton covered this issue for many years if seems.
 
I have a feeling you might have R15 in your walls and maybe R19 in the attic area,
No I seen it with the dry wall down the whole addition is r19 walls roof crawl space everything. Idk what the original house is but I do know the attics is up to your knee if you stand in it.
 
Yeah you won't get real hot air toward the end...which works for me, let the house cool a bit before reloading...get too hot in here otherwise...not your experience thus far though I know...
It wouldn't be a big deal if it got it warm to start with. I wouldn't mind using a little electric while it was burning down
 
Merry Christmas everyone!! What another beautiful day. So this thread really bothers me because so many things don't add up or make sense. Going back to the details of the Clayton, these are the things that we assume to know. I am going to plug in a 50% effeciency for the Clayton. A seasoned cord of hard maple has a weight of 4900#. I will figure a optimistic 6500btu per pound at 20% mc. At 50% yields 3250 btu per pound.

So 4900# * 9 cord * 3250 btu per pound equals 143,325,000 btu's.

24 hours * 180 days equals 4320 hours

143,325,000/4320 equals 33,177btu average per hour heat loss. Large, yes. Completely ridiculous, no. So what am I missing?

Experienced Kuma guys, what is the Kuma rated for at a 12 hour average on high output?

And If it truly can't keep up with these current temperatures it seems to me there should be something so grossly wrong with the house it should be obvious. Something like a couple of skylights left open.
 
A seasoned cord of hard maple has a weight of 4900#.

IMO, 4,900lbs is a bit much for hard maple. (broken link removed)
Which makes it even more confusing. Numbers just don't add up.
 
Merry Christmas everyone!! What another beautiful day. So this thread really bothers me because so many things don't add up or make sense. Going back to the details of the Clayton, these are the things that we assume to know. I am going to plug in a 50% effeciency for the Clayton. A seasoned cord of hard maple has a weight of 4900#. I will figure a optimistic 6500btu per pound at 20% mc. At 50% yields 3250 btu per pound.

So 4900# * 9 cord * 3250 btu per pound equals 143,325,000 btu's.

24 hours * 180 days equals 4320 hours

143,325,000/4320 equals 33,177btu average per hour heat loss. Large, yes. Completely ridiculous, no. So what am I missing?

Experienced Kuma guys, what is the Kuma rated for at a 12 hour average on high output?

And If it truly can't keep up with these current temperatures it seems to me there should be something so grossly wrong with the house it should be obvious. Something like a couple of skylights left open.
Yeah, I feel like the house is probably R15 for the majority of the exterior walls. Maybe the addition has good insulation, but it has the crawlspace issue. Between the ducts loosing a bunch of heat throughout the crawl space, the transom windows letting the basement heat out, and 1990 energy building codes it's amazing the Clayton could keep up.
 
It's 68 in the house today so it's kind of keeping up today I guess. I got 4 more degrees at the register today with the cardboard.
That's a significant difference I say. Perhaps you can get a bit of cumulative effect and keep the train going.
 
  • Like
Reactions: brenndatomu
Yeah, I feel like the house is probably R15 for the majority of the exterior walls. Maybe the addition has good insulation, but it has the crawlspace issue. Between the ducts loosing a bunch of heat throughout the crawl space, the transom windows letting the basement heat out, and 1990 energy building codes it's amazing the Clayton could keep up.
The clayton didn't even try to keep it warm unless it was in the negatives but it always got it warm
 
Still doesn't add up. Rated max Kuma output per hour anyone?
I think it's just to slow to heat it up. As it leaks out faster then it comes in from the stove. The clayton would heat it 5 degrees in a half a hour. I know no one believes me but it's true! My freinds can't believe the house is cold now when they come to visit.
 
Dale from lamppa said its about 47k he's said that's real power what you get
Is that all? My Morso is rated at 28k btu/hr nominal and 34k max. A quick Google search says the Clayton is rated up to 180k.
 
Status
Not open for further replies.