Fill out the form below, and one of our reps will be in touch with you ASAP
NOTE: ESES offers information, services, parts, and accessories to all consumers. Regarding stove sales, we are limited to Wisconsin and Michigan territories only. If you live outside these areas, you will need to contact the manufacturer to find your nearest local stove dealer.
Free shipping on online orders over $75 to the continental U.S
Top quality USA replacement vacuum differential switch tubing hose for Harman and Heatilator Eco-Choice pellet and coal stove models. HHT part numbers 3-44-5113574, 1-00-5113574 for the replacement hose for vacuum switch 3-20-6866. This vacuum switch is used in all Harman pellet stove models, the Harman Mark I coal stove, and Heatilator Eco-Choice pellet stove boiler and furnace models.
Also referred to as the pressure switch or air draft switch, the vacuum differential switch senses pressure in the firebox and exhaust flue vent pipe. The vacuum switch is in-line with the auger feed motor and will not allow the auger motor to run if it is tripped or faulty. Any air losses or air blockages can trip the vacuum switch. When experiencing issues with this safety switch, check the following: Vacuum switch hose/tubing, firebox door and ash door gasket seals, ash accumulation in the stove or venting, air intake channel, combustion blower/exhaust fan functionality. We recommend annual inspection of the vacuum switch hose and to replace if it becomes brittle, cracked, or is no longer making proper connection. Learn more about the vacuum switch in our video below.
Vacuum Switch Silicone Tubing Hose, 1/8" I.D. x 5'
Guaranteed Newest Stock Inventory
Why Choose Pellethead?
On-Time Shipping
USA Retail Locations
Unmatched Warranty – No Hassles
Live Tech Support
We have over a 99.5% on-time shipment rate. Get your products on-time or before the estimated delivery date.
We are not fly by night online Retailers that will be here today and gone tomorrow.
We stand behind every product we sell with our no hassle warranty.
We offer tech support for every single product we sell. Have an issue, have a question? No problem give us a ring.
Top quality USA replacement vacuum differential switch tubing hose for Harman and Heatilator Eco-Choice pellet and coal stove models. HHT part numbers 3-44-5113574, 1-00-5113574 for the replacement hose for vacuum switch 3-20-6866. This vacuum switch is used in all Harman pellet stove models, the Harman Mark I coal stove, and Heatilator Eco-Choice pellet stove boiler and furnace models.
Also referred to as the pressure switch or air draft switch, the vacuum differential switch senses pressure in the firebox and exhaust flue vent pipe. The vacuum switch is in-line with the auger feed motor and will not allow the auger motor to run if it is tripped or faulty. Any air losses or air blockages can trip the vacuum switch. When experiencing issues with this safety switch, check the following: Vacuum switch hose/tubing, firebox door and ash door gasket seals, ash accumulation in the stove or venting, air intake channel, combustion blower/exhaust fan functionality. We recommend annual inspection of the vacuum switch hose and to replace if it becomes brittle, cracked, or is no longer making proper connection. Learn more about the vacuum switch in our video below.
Vacuum Switch Silicone Tubing Hose, 1/8″ I.D. x 5′
Guaranteed Newest Stock Inventory
Why Choose Pellethead?
On-Time Shipping
USA Retail Locations
Unmatched Warranty – No Hassles
Live Tech Support
We have over a 99.5% on-time shipment rate. Get your products on-time or before the estimated delivery date.
We are not fly by night online Retailers that will be here today and gone tomorrow.
We stand behind every product we sell with our no hassle warranty.
We offer tech support for every single product we sell. Have an issue, have a question? No problem give us a ring.
The silicone tube over time can get brittle and crack. Important to replace if there's any signs of leaking, cracks or wear.
Product Note
Will fit other pellet stove manufacturers, double check your length required and Inside Diameter Measurement. If you need assistance, please message us.
Models
Harman Pellet
Absolute 43
Absolute 63
Accentra 52I
Accentra 52i-TC
Accentra FS (Accentra Cast)
Accentra Insert
Advance
Allure 50
HydroFlex 60 (HF60) Boiler
P35I Insert
P38 (P38+, PP38+)
P43
P61
P61A
P68
PB105 Boiler
PC45
PF100 Furnace
PF120 Furnace
XXV (25th Anniversary Model)
XXV-TC
Harman Wood & Coal
DVC 500
Mark I
Heatilator Pellet
BA100
BH105
BH60
BIO-120
Our Guarantee:
100% Best Price Guarantee
100% Satisfaction Guarantee
100% On-Time Shipping Commitment
Returns accepted within 30 days on products not used or installed
Over 30 years of trusted value and commitment to customers.