PWR™ Powdered Water Repellent Dampers they come in singles only

they come in singles only

One bucket is sufficient to complete an average sized smoke chamber with larger chambers requiring two or more

Shown at the bottom of the picture is a cast iron log lighter

Damper plate closes against fiberglass gasket (white) for a tight seal (screen removed for demo)

Smoke Guards

PWR™ Powdered Water Repellent Dampers they come in singles onlyPWR Powdered Water Repellent PWR is a dry mix water repellant from the folks at SaverSystems. It's designed to be added to mortar mix to make it waterproof. PWR comes in a 32 oz. container with a measuring cup. Add one ounce for each 15 lbs. of mortar mix. When you do crowns or tuckpointing it will be waterproof when it cures.