
We have recently installed high efficiency natural gas condensing stoves and they use PVC pipes for inlet and outlet instead of chimney ventilation. I was worried about wasps, critters etc so I wanted to keep them away. You have done a great job. The key was to install them with a flange on the inside and some clear silicone to stick on. They are ideal for 2" PVC elbows (i.e. not true 2" pipe). Turn the oven up (I have a two-tier setup) and they stayed in place. Recommend it for this app.

Easy Install White Magnetic Door Screen For Doorways And Sliding Doors - Fits 34X82 Fiberglass Mesh Screen With Heavy Duty Magnets - Screen Size 36X83
36 Review

Ensure Safe Steps With Outdoor Non-Slip Stair Treads - 10 Pack Of 6"X40" Black Anti-Slip Strips
42 Review

Non-Slip Brown Carpet Stair Treads - 15-Pack Of 8"X30" Runners For Wooden Steps
39 Review

Stylish & Safe: Sussexhome Carpet Stair Treads For Wooden Steps - 4-Pack Of Self-Adhesive, Pet & Kid-Friendly Indoor Treads To Prevent Slipping
51 Review

Seal And Insulate Your Doors And Windows With TamBee Self-Adhesive Weatherstrips - 65.6 Ft Black Roll
38 Review

High-Performance Convection Heater By Mr. Heater Corp, Ranging From 75K To 200 BTU/HR
47 Review

π₯ MH40NG Mr. Heater F272800 40,000 BTU Multi Natural Gas Garage Heater
26 Review

Universal Rubber Weatherstripping Kit For Garage Door Bottom Seals - Effective Replacement With Weatherproof Threshold Buffering & Sealing - 5/16" T Ends, 3 3/4" Width - 16 Ft Length
29 Review