22 Water Heater Draft Hood Purpose

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Water heater draft hood purpose. Field installation of draft hoods standard gas water heaters general the purpose of this bulletin is to show installers how to properly connect draft hoods to single and double wall type b vent pipe. A confined space is defined as having less than 50. If the smoke blows the water heater may not have enough air in volume to operate.

Not having the draft hood the appliance will pull harder to evacuate combustion productsit will pull the heat through to quickly and the efficiency will be lower. The draft diverter which consists of a baffle plate positioned directly above the primary flue regulates the direction and amount of air flowing in and out of the burner. How to properly vent a gas water heater.

water heater draft hood purpose

Water Heater Draft Hood Purpose

A draft hood is critical to the operation of a gas water heater. Click to enlarge any image the draft hood or draft regulating device we are discussing here is normally used only on gas fired heating equipment not on oil fired equipment. These instructions cover 3 inch 4 inch and combination draft hood sizes.

This video describes what the purpose of the draft hood is in a chimney explained by a dunwoody college of technology staff member tom kleinman. A draft hood is a device that is usually installed on water heaters gas boilers and non current gas or oil furnacesa few applications can even be found externally attached meaning that they were not installed as regular equipment but the majority of them were installed as a piece of the appliance. Making sure that the water heater is venting properly can give you peace of mind.

The draft collar is not to prevent back drafts or flame roll out in fact there is a greater risk of carbon monoxide with it on from an operational viewpoint because the combustion gasses can escape. Water heater backdrafting part 1 of 2. A draft diverter or draft hood plays a vital role in the operation of a combustion chamber such as a fireplace or furnace.

Water heater draft hood purpose. An explanation on the operation of the drat hood and testing under a variety of draft conditions to show impact on performance of the appliance. The efficiency of the water heater is also a factor. Guide to draft hoods on gas fired furnaces boilers water heaters purpose inspection repair..

The fumes from a hot water heater contain carbon monoxide and can make you sick or even be lethel at certain levels. How to troubleshoot gas waterheaterplace the mirror close to the draft diverterif the mirror fogs up then there is spillage. Why it matters and what to look for by reuben saltzman in hvac water heater backdrafting on september 24 2013 backdrafting at a water heater is a common defect identified during home inspections and its almost always a condition that the homeowner or occupant is not aware of. Water heater draft hood purpose.

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