Heat-Wagon - Model 4210 -Direct Fired Heaters

Can be utilized as a make-up air unit. Safe fuel shutdown if combustion air is interrupted. May be ducted up to 400 feet. Safe monitoring of combustion, two trial electronic ignition with 20 second pre-purge time delay and 7 second shutdown. Fused disconnect switch permits easy, safe 100% power shut off. Protects heater by shutting down if unit is being overfired (high limit). Protects heater by shutting down if voltage is too low. Easy monitoring of control voltage to ensure trouble-free operation. Automatically cycles the heater hi/low. Indoor/outdoor usage.