We spoke earlier of a company which has developed a good smoke system for glow engines. American Model Products, Inc. of Baxley, GA, offered complete setups for 2-cycle and 4-cycle glow engines. Note the past tense. AMP is no longer in business. You can see the AMP system and its effective operation on glow engines on the Smoke On video tape referenced in this article. AMP's advantage was their "Pre-Heater, where the smoke oil is heated prior to its injection into the muffler. You might be able to find an AMP system on the used market or might craft your own equivalent. Other manufacturers are on the market with smoke mufflers and heater coils for glow engines. We've not seen these in operation and cannot endorse their operation.