What you want is a EPA (enviremental protection agency) rated Secondary Burn Stove.
The give the same heat as an old timer stove,like the barrel stove mentioned in your post, but only burn 1/3 of the wood to do it with. This results in savings of wood of 66%.
I do not recommend a catalitic combustor stove as they are all high cost of maintaince
stoves , too complicated for your cold envirenment, where a good running stove can make the difference between life or death.
You mention over nite burns as being important on the one hand & on the other hand complain about the stove being too hot. I think that the stove you are using has a primary air leak into the combustion chamber that causes too much primary combustion air into the fire box so that your burns are very hot & very short.
the sq ft of your cabin is 700 sq ft , but due to the extreeme cold temps I would not buy anything smaller that a medium capacity firebox stove rated 1800 sq ft, but that size of firebox is a bit small & can only manage a 6 hour overnight burn.( 8hr if you lucky, but don't count on it) overnight burn.
You could be better off buying the large size 3.5 cubic ft firebox, rated 2000 sq ft, because it has a proven 8 to 10 hr overnite burn with red hot embers to wake up to.
I am from conn . usa (new england) so I dont know the stoves or stores in your area.
If you have lowes home improvement , buy the summersheat model 50snc30lc, it is a secondary burn wood saver with 2000 sq ft heating capacity & 8 to 10 hr overnight burns.
If you have a home depot, ace hardware or tru value hardware buy englander model 50-30ncp or ncl . Same stove as summersheat,parts interchange.
If you don't have any of then click here & buy 50-snc-30lc for $799.oo(shipping included to most locations) but you might have to pay additional shipping, depending.
www.overstockstoves.com
NOTE THE PRICE: > $799.oo & compair this to 2000.oo for a blaze king or 2500.oo for a pacific energy summit or 3000.oo for a soapstone.
Here are the reasonS why I recommend
www.englanderstoves.com
1. Summersheat & englander stoves are the same stove, but different names are propietary to different relailers and englanders are the simple uncomplicated
work horses of the wood stove herd.
2. they are the least costly stove that you can buy that is still a high quality 20 year life stove.
3. You can't buy a compairable stove for the same price or even for 1.5 times as much.
4. They are all welded 1/4 inch steel & built to last almost forever or at least 20 years with the exception of 7 do it yourself, replacable parts that will eventually wear or are prone to breakage. Some other stoves, century,for 1 , will use a thinner steel, thus shortening the stoves life.
5. they are simple but brilliantly designed to be fixed by the handy man owner, no waiting 3 weeks for a factory trained repairman to finally show up & for fuel efficiency on a par with the most expensive secondary burn stoves you can buy.
6. they work & work well & they save wood & they cheap & ugly, compaired to competition.
I don't care about looks but I like the big glass fire viewing door. Almost as good as watching tv.
There are other secondary burn stoves that you can buy that are as good but at twice the price & i am not one to recommend wasting money on bells ,jingles or bragging rights.
SIZES OF STOVES WITH COMMENTS!
sizes of stoves--- SMALL--- 1000 to 1200 ft --too small of a fire box for more than a 4 to 6 hr burn & has to be cranking at max all the time in colder weather to stay warm.
MEDIUM -- 1200 to 1800 sq ft -- can manage a shorter over nite burn, say 6 to 8 hr, but still a small firebox that don't hold too much wood and needs to crank full throttle in cold weather.
that for a 1800 sq ft house, In your 700 sq ft cabin ,it be ok except for them 70 below nites
& that why I want to see you get the large size firebox. If you need more wood there is room in the stove for it.
LARGE ---2000 to 2,2000 sq ft ,this the size I recommend for you based on your extra cold temps & need of a 10 hr overnight burn ,the 3.5 cubic foot firebox on this stove is big enough to delever the heat all nite long & still have red hot embers in the morning, resulting in a huge savings in newspapers & matches.
, oh yea, & time & effort spent refueling the stove.
LOOKIE HERE AT THIS:A stove can only heat with as much wood as you can cram into it. You can't cram more wood into a small firebox, so you is stuck, FreezingYourAO , but you can regulate the temp output of a large firebox by putting less wood into it & space is available for more wood if you want to run around the house in just your shorts.
I have to keep mine cranked at max all the time because I heat 3000 sq ft with it,more area than it is susposed to be able to heat but it does the basement & first floor roasty toasty, 5 rooms on first floor, temps range from 69 to 79 depending on the room &
58 deg on the second floor with 4 rooms, because of poor heat transfer. I think the stove make enough heat but its a problem of getting the heat out of the basement & up to the second floor. Fortunately, I live & sleep on the first floor, where it is warmer with the summersheat stove than it ever was with the oil heat money burner.
If you follow my advise, I feel safe in saying you will be happy & save a lot of money, to boot.
But then again,I don't never seen,your place.
Im not at all worried about recommending
www.englanderstoves.com but i am still thinking
med or large,med or large.
Call up mike at englanderstove.com , his phone number there on web site or email him, see weather he say med or large. BUT LARGE TO BE SAFE & JUST LOAD LESS WOOD IF IT 2 HOT.
not much difference in purchase price between the different stove sizes.