If some of your lava rocks are too small to be vacuumed without getting sucked up in the machine put a piece of.
Cleaning a gas fireplace flue.
Ask your heating service tech to check the chimney itself and order a cleaning if needed.
Use a soft bristled brush to clean up any soot build up.
Oil gas fired heating appliance chimneys also need to be inspected and cleaned.
Make sure that carbon monoxide detectors are kept in working order.
You can reduce creosote buildup in your fireplace flue by providing adequate combustion air which will encourage a hot clean burning fire.
Regular maintenance also includes removing any debris birds nests etc that may have accumulated in your flue.
Have your gas fireplace chimney inspected and cleaned annually at a minimum states fireplaces and open the flue using a clamp to keep it open.
Close the door to the wood stove or tape plastic across the fireplace opening.
Whether it s creosote soot or some other type of debris in your chimney any of this debris can cause a problem as it could impede the escape of smoke from your fireplace.
Part of normal oil fired appliance heating service includes disassembly and cleaning of the flue vent connector.
You can also use the vacuum hose to clean up around the vent of the heat exchanger.
Working from above with the damper open and the chimney cap removed thread on the first rod.
Insert the brush into the flue push it down scrubbing up and down as you go.