
Promat HPI offer unique solutions for control of heat loss from these structures. Chimneys and heating system exhaust flues can be a safety problem when routed outside the building. Accidental contact can result in a serious burn. Excessive surface temperature can also be a fire hazard with building components such as a thatched roof.
Also, a successful “chimney draw” is dependent on the following principles:
- The difference in air pressure between the appliance and the top of the chimney. (Created by the height of the chimney)
- The difference in temperature between the appliance’s exhaust gas and the outside temperature
- The quality of insulation along the length of the chimney
- The route of chimney. (The straighter and more vertical the chimney the better)
The solution is to use an insulation that can flow into confined spaces and consolidate to provide effective protection.
Promat HPI offers a wide range of flexible and pre-shaped pipe insulation to wrap around chimney pipes covered with protective cladding for weather protection when routed outside a building. Inside the building structure it is important to isolate the hot metal structure from direct contact with building materials such as wood and thatch to eliminate fire risk. This is particularly important where a flue penetrates the building structure on exit from the appliance because at this point it is likely to be close to its hottest temperature.