These cleaning straws come with all new heaters after purchase date of:  12/10/2025

Note: These straws are to be used for emergency maintenance only, and we recommend fully servicing your heater unit if you suspect soot buildup. 

Follow the guidance in this article: https://help.velitcamping.com/help-articles/how-to-clean-a-velit-gas-or-diesel-air-heater