In order to safely and efficiently use your masonry heater or fireplace throughout the year, it is essential to hire a certified chimney sweep to clean your chimney. While a properly operated and maintained masonry heater or fireplace should produce minimal emissions and virtually no creosote, it is still important to regularly clean your chimney to ensure correct lighting and prevent potentially dangerous chimney fires. When using wood heat as the sole or primary method of heating your home, it is recommended to have your chimney inspected and cleaned every six months. For anyone that burns wood indoors at all, your chimney should be inspected and swept at least once a year.
Some products are advertised as providing a similar service to chimney sweeping but through the convenient medium of burning a special creosote sweeping log. While it is true that regularly burning these logs in a conventional fireplace can reduce the accumulation of creosote, they cannot replace a full inspection and cleaning by a certified professional. These logs are incapable of fully removing more hardened layers of creosote buildup in more severe cases, and an over-reliance on them can be dangerous. They should never be used in a masonry heater. Most importantly, certified chimney sweeps provide critical inspection for not only creosote buildup, but for the presence of any living or dead animals and any dangerous damage to the chimney lining or flue.
In order to find a list of certified chimney sweeps near you, check out: http://www.csia.org/
5 Important Tips for Storing Firewood:
1. Make sure wood does not make direct contact with the ground
2. Keep wood away from moisture at all times
3. Store wood as close to your heater as possible
4. Stack wood in a well ventilated place
5. Enclose firewood so it is covered while maintaining air flow
When deciding where to locate your heater, the placement of your outdoor and indoor wood storage areas should be taken into consideration. The paths from all wood storage areas to the heater should be as short as possible and involve no stairs. The outdoor area should be well-ventilated, dry, sheltered from rain and snow, and enclosed so the wood doesn't require repeated covering and uncovering. Just as you wouldn't go to the petroleum-products store to replenish the fuel every time the oil furnace kicks on, you'll want to move your firewood as infrequently as possible, in the largest possible loads, and as close to the heater as possible.
The main factors are that the wood is off the ground, rain cannot fall on it, there are walls or something to protect the sides, it is good to have as much air movement as possible, open on the front works well, it needs to be tall enough to get into without hitting your head, and you want to be able to store enough wood for two seasons and be able to get at the older wood that is driest when needed. About 4+ cords is what I would want. It can be very simple or complex. It can be open on two opposing sides for access on both sides.