hi beno,
You have 3000 sq ft so I think you should be buying the caddy model psg 4000
in hot air wood/oil. You will find that electric will be equal to or greater in cost than oil.
Another reason to go with oil is that you can run both your duct blower motor and your oil burner
frpm a 4000 or 5ooo watt 5 or 6 hp generator which usually costs around $500.oo
I bought one for myself back in 2000, never had to use it,but if i ever loose power, I will still have heat & a refrigerator & tv.
With the electric heater coil, loose power,, and well, your not going to run that off any generator with a engine smaller that 150 hp & 25,000 watt generator costing thousands of dollars.
The model 4000 is designed to heat 4000 sq ft ,so you will have 400 sq ft extra capacity
to see you through the coldest nights.
The becket oil burner is rated 84 % efficient and located beneth the wood furnace
ash box so that you dont have to worry about the wood fire damaging the oil burner.
By the way, that becket oil burner is the same one i installed myself(DIY) in my hot water furnace back in 1985. 22 years later & it is still running like the day it was new.
It is one honney of a oil burner & very easy to service, as oil burners go.
Also, you can buy the caddy 4000 wood / oil hot air furnace with the acceptance hole for the becket oil burner without buying the becket oil burner & add the oil burner on at any time later.
In a power outage, you run the oil burner or wood blower off the gasoline generator.
You can not cook on the hot air furnace ,it is not a wood cooking stove & I would not run the wood furnace during a power outage without hooking up the duct blower to the generator.
If all you are going to run is just the duck bkower & not the oil burner,you can get away with using the 1000 watt or 500 wt 1 hp 2 cycle chineese two cycle (mix oil in gasoline)generator that you see selling for $100.oo to $200.oo at
www.harborfrieght.com, but this is a baby generator and can only power one thing at a time.
The duck work clearances are 6 inch for the first 6 ft and 2 inch thereafter.
29 inch clearances are needed around the furnace to leave room for the service man to crawl in and service stuff.
All this info(except about the generators) is on the link you provided.
I guess you were so excited that you just forgot to read it there.
Please do download the owners manuel and read it.It is there on that bottom link in your first post of this thread.
The duct fan can be wired either with a relay or with a 2 way hall way switch so that in one position the fan gets household power & in the other position,it is disconnected from household power and is fed from the generator feed wires.
I would not worry about the two chimney thing because they don't want two seperate heating appliances sharing the same chimney AT THE SAME TIME BECAUSE IT DIVIDES THE DRAFT
IN TWO AND EACH UNIT ONLY GETS HALF THE DRAFT IT NEEDS.
THAT IS NOT THE CASE HERE. You either fire the wood side or the oil side but never both sides at once, so you never have two heating appliances sharing the same draft at the same time and cutting the draft in half.
The unit is designed to opperate from one chimney, either designed into a common firebox or with a cut out plate/baffle, that cuts off the firebox not in use from the draft, in the case of two fireboxes.
It is sure one sweet setup & if it were me, I wouldn't hesitate for one second in buying one.
).
