All wood burning fireplaces have to have a way to allow smoke and dangerous gases to exit your home. Your chimney can be a special metal pipe that extends from the stove through the roof and topped off with a chimney cap. You will need to keep in mind that burning wood requires preparations ahead of time and the right type of wood.
You want to make sure that you cut your wood 6 months to a year in advanced to give it time to cure or season in a well-ventilated area. You need to choose wood that is seasoned and not green if you plan to use it right away. Green wood will burn more slowly but produce a lot of smoke-which is a potential fire hazard. If you want to go a little bit cheaper way and would rather have a natural gas or propane fireplace, then a ventless system is another option.
First of all, you will need to contact a qualified chimney technician to check that the flue is actually working and, if a new system should be installed, that smoke can be discharged effectively. The old flue will have to be checked all the way up to the chimneypot and cleaned out thoroughly to make sure there is no clogging or creosote encrustation.
Creosote is a highly flammable and dangerous material produced by condensed fumes during the combustion process. Once the necessary technical inspection and cleaning is done, if you are thinking of reusing the existing flue your first option will be to install a stove. In this case, a stove with upper smoke outlet is the ideal solution. These models have a smoke outlet on the top, unlike most stoves, which generally have it on the back.
As a result, connecting them directly to the existing flue system is a fairly easy task. Upper smoke outlet models come in wood-burning and pellet versions. Pellet stoves are, without a doubt, more practical to use but also to install. It was like a beer can being squeezed after consumption. It was a legal mess and could have been a dangerous situation. The entire flue had to be replaced at the expense of the installer and designer. If you are re-using the existing flue, verify the size and category is correct.
The following is a list of the flue categories that are used for venting boilers:. Confirm the size of the flue the old boilers were using. If the old boiler had a draft hood, the flue may be oversized when using a power burner. I suggest making a diagram of the existing flue and consult a venting specialist when reusing the existing flue.
This is where the Seven Times Rule comes into the play, which is: The flow area of the largest common vent or stack shall not exceed seven times the area of the smallest draft hood outlet. Since most water heaters use a 3-in. You may have to change the venting of the old water heater or install a flue liner for it. The round flue chart left shows the largest common round flue that each can be connected to.
If you are connecting to a square or rectangular chimney, you will need to estimate the area. The rectangular flue chart page 62 shows the sizes the vent can be connected to. For example: You remove the boilers from a square chimney that is 12 in. The chimney is in. This is greater than the rule of seven sizing for the 4-in. On this job, you would have to make provisions for the water heater flue. A chimney liner would most likely have to be installed here.
You will need to have the price for that in your estimate or design.
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