The heating system is a BBHW oil fired. There is no sure way to check for sediment except to pull the coil which is a major production and should only be done as a last resort. Amtrol 2703Z01-6 - 41 Gallon CH-41Z BoilerMate Champion Series Indirect-Fired Water Heater (Blue) - 41 Gallon CH-41Z BoilerMate Champion Series Indirect-Fired Water Heater (Blue) This category contains Amtrol BoilerMate Indirect-Fired Water Heaters, including the Champion, Classic & Premier Series. The coil is piped horizontally to the exterior of the tank with slots for easy removal if cleaning is needed. I normally use heating oil to run it but I ran out recently and had to put some auto diesel in it. It's actually the 5th one I've owned in years at the same house. Rick. High Gloss Finish; Available in Blue, Red or Gray. View and Download Amtrol BOILER MATE TD-41Z installation, operation & maintenance instructions manual online. Explore our Amtrol parts today! I've heard stories of the these tanks becoming damaged if they are run too hot. Form Fitted to Bottle and Outer Shell for Enhanced Efficiency. True to their heritage, BoilerMate Hot Water Makers® offer great value and dependable performance with options to fit any installation and budget. I also checked the blower fan and it seems to be turning correctly. $134 ... TD-7 RTR, TD-80 Series, WHS 60 and 80 Residential, WHS 120 Residential, Boilermate Indirect Fired Water Heaters: Commonly Purchased with This Item denotes installation item. Use proper safety equipment when installing. If your application is not shown, contact AMTROL Technical Support at 401.535.1216. Amtrol 2702Z01-6 - 80 Gallon CH-80Z BoilerMate Champion Series Indirect-Fired Water Heater . Amtrol 2704-093 Dial Aquastat Residential . Webb - 150 Years of Industrial, Commercial, Residential Selection, Expertise & Solutions. Also have the same problem (leaking) Amtrol Boiler Mate Classic Series .