I came from a wood burning house to a place where it was not practical to install and use a woodstove (termites in area, very humid during summer, no room outside to store firewood because of swampy ground etc).
Pros:
- No bark/wood droppings in house - although there will be dust
- No critter mess brought into the house (overwintering ants/wasps/insects), nor any mouse smells.
- (related to above) Pellets can be stored inside without worrying about insects like termites/ants or rodents.
- Can be thermostatically controlled from a different room (or use built in monitor on the stove). This means temperature is self-regulating.
- Self-feeding so only have to make sure that hopper is full and it can run from 24 hours or more (depending on outside conditions.
- As long as you get a pellet stove with an ignitor, it will start by itself without any attention - instead of using coals/kindling and having to pay attention to starting a wood stove.
Cons (some mentioned previously):
- During power outage you need a power source
- Need a dry area to store pellets
- Wood stove heat can be more btu's and is radiant instead of pushed out by a fan
- At times there there may be pellet shortages (happened twice in my area in the last 12 years)
- Moving parts on pellet stoves mean at some point there will be costs involved - the better quality stove you buy, the more likely that the costs will be many years down the road.
- Your existing exhaust / chimney for the woodstove will not be compatible with a pellet stove, so there is added cost besides the stove itself.
- Pellets usually come in 40 pound bags (you may be able to find them in 20 pound bags). So, loading up a pellet stove with fuel is more physical than loading firewood (where you could carry just a few logs at a time.
Depending on the pellet stove you acquire, the cleaning can be anywhere from daily (during cold weather) to monthly. I clean my stoves about every 3 weeks. Just as an FYI, cleaning is not just removing ashes as it would be for a woodstove.
If your house doesn't have very good insulation and/or is drafty, a pellet stove may be disappointing. Depending on the size of your house, or configuration, you may need two pellet stoves to heat the whole thing. My house isn't very big (960 sq/ft on main floor, plus basement). The P61a in the basement should easily heat the whole house (and does for some people). Unfortunately, the configuration and lack of air dynamics on the main floor made it so that I had to put in a smaller stove up there.
I love my pellet stoves and am able to store pellets in the under-house garage and basement so they are handy all season long. I am able to do most maintenance myself (I've only had someone else replace an exhaust fan/motor for the P43). But, I also recognize that a pellet stove may not be the best option for some people.
In your case, I'm wondering if it would be cheaper, easier and more desirable to just buy pre-split wood and hire someone to stack it for you. I base this entirely on the assumption that your house is drafty and not well insulated, so could be wrong. Also, that doesn't take into account some of the positives I listed, which may be very attractive for your circumstances.