Residential combustion venting failure - a systems approach. Project 5. Remedial measures for gas-fired appliances.

A research project was conducted to find and evaluate remedial measures for combustion venting problems with gas-fired appliances. It was hoped to find measures that held promise for near- to mid-term commercialization. The project was one three projects conducted by a mu/ti-disciplinary team of scientists and engineers to investigate combustion venting remedial measures for several types of combustion appliances. The research represents one sub-project in an overall project to investigate residential combustion venting failure. Three remedial measures for gas-fired appliances were evaluated and were found to hold varying degrees of promise for near- to mid-term commercialization. The measures evaluated were temperature-dependent spill switches, a prototype draft assisting chamber and a draft inducing fan. No attempts were made to evaluate issues such as long term durability, or compliancies with codes and standards.