I live in a cold climate, the previous pipe had to be replaced because it was leaking, probably due to improper winterizing. Use the same technique for masonry chimneys. Thanks for the help ! Also asked, can you use foil tape on a water heater vent? If it’s an electric water heater, locate your home’s electric service panel, and turn off the breaker labeled “Hot Water Heater” by switching it to the “Off” position. Duct tape is generally more expensive than electrical tape. Duct joints should always be secured with #8 sheet-metal screws before seams are sealed with mastic. But if i spill 1/2 gallon of water, on my floor it will leak on 1st floor like rain. Around doors. The adhesive will burn up, but the aluminum will stay, although it will become brittle by the heat. Insert the tube into your caulk gun. The horizontal part is in a 10 inch space between joists. Can I use duct tape instead of foil tape. This is not a pressure pipe, the heated gases rise due to natural buoyancy and tend to draw air in at the joints rather than leaking out. Steps for Fixing a Leaking Rooftop Vent Pipe: Use a pocketknife to scrape rough edges and sharp points from upper end of plastic vent pipe. What is 21st century literature in Philippines? And if the leak is under the car, parts of it can enter the cabin, creating a bad smell. In the basement or crawl space. Caution: Furnace flues (the pipe that removes your furnace exhaust) can be very hot. (Some water heaters don't have this valve installed, if this is your situation, you'll need to shut off the water to the entire house). Facebook 0 Tweet 0 Pin 0 LinkedIn 0. trishm1 asks, I recently used spray foam from a can around an exhaust pipe coming from a hot water tank in the opening of my chimney. What is internal and external criticism of historical sources? “Choosing between powered and non-powered venting can often come down to simply how the house is laid out and where there is room for the venting,” notes O’Brian of Supply House. The mastic is spread over duct seams with a disposable paintbrush, putty knife, or your fingers. Non-foil tape can also catch on fire. It is in no way as big as a hazard as it was decades ago, but exhaust fumes are still bad. First of all, there are many different types of water heaters, and they boast a wide range of energy-efficiency profiles. Wet your finger and tool the bead by gently dragging your finger along its entire length. 2. On top of it, it may create noise, which can also develop further over time. Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe (this requires a double-wall vent duct). And it's not good for you. Use a plumb bob to be sure the center of the tube at the ceiling and the center or the boot on the water heater are lined up. That’s not to say there’s never any justification for switching to a water heater that vents differently than the old unit. Around floor vents and dryer vents. Isn’t there an appropriate connector for single wall to double wall pipe? O’Brian recommends consulting with a contractor even if you plan to upgrade to a water heater that vents no differently than your old unit. Image Source: YouTube Embedded Video. If you have a hole in your exhaust, you can patch it with Flex Tape. Duct tape is made of cotton mesh, covered with a type of plastic called polyethelyne, with a rubber-based adhesive underneath. Cut away the old caulk from around the vent pipe. Likewise, can you duct tape a furnace exhaust? Duct tape does not offer the same fire-resistant property that is generally found in electrical tape. Place furnace tape around the joints to ensure tight seals. Combined venting with older furnaces was common because enough heat from the furnace vents outside (usually 30% of more of all heat produced).This keeps the vent pipe warm enough for water … With a direct-vent system, air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof. I am having a leak on the roof repaired so I will just make sure it is nice and caulked from the roof. When that happens—being forced to take cold showers or clean dinner dishes by hand—you’re probably going to find yourself thinking about the water heater quite a bit! The leaking may first be seen in the attic, but if you don't catch it right away you may see water coming into the house, dripping on the floor. Sealing duct seams is messy work, so wear old clothes. ! Before you push the insulation back into place, build a metal dam to keep it away from the pipe. The wall is made of wood, with a vinyl siding on the outside. One may also ask, can I duct tape my exhaust pipe? Phil : and the vent pipe. I am going to just cut and lower the pipe (with a t-trap). If a water heater is set to store water at 140 F to minimize Legionella bacteria growth, the flue gas temperature will be about 160 F when the heater is new. As scale builds up and the heater efficiency falls off, the flue gas temperatures can easily increase to over 350 degrees F. Water Heater Venting Basics All water heater venting systems use a vent duct or pipe — also called a chimney or flue — to bring exhaust gases from the water heater to the outdoors. Can I refinance my home for home improvement? These gaps should be sealed with lightweight aluminum flashing and special high-temperature (heat-resistant) caulk. Anyway, here's a picture of the water heater vent pipe. Inside the attic. Water Heater Venting Basics All water heater venting systems use a vent duct or pipe — also called a chimney or flue — to bring exhaust gases from the water heater to the outdoors. Inspect the water heater flue pipe. I think taking the pressure off of the vent and redoing the pipe may just be the best way. Black Gorilla Tape. Foil Tape. Can you enter Acadia National Park at night? In this video, This Old House general contractor Tom Silva shows how to create a watertight seal around a vent pipe. How to Select the Right Water Heater Size, 5 Signs You Need to Start Filtering Your Home's Water. Mark: If you are sealing a gas fired water heater flue and are so far away from the heater (presumably on a basement or first floor) as to be at the roof, then sealing a metal flue joint with foil tape ought not cause an issue; I'm not sure why that's needed if you're using a UL-listed B-vent … As O’Brian points out, “A replacement that saves you a lot on your energy bills may be well worth the added installation cost.” In assessing your water heater options, it’s wise to consider the question of ventilation, but when it finally comes time to make a purchase, O’Brian says, “Be sure to weigh both the upfront and ongoing costs.”. Without proper ventilation of the noxious gases created by combustion, modern water heating would be a dangerous proposition. DO NOT use regular duct tape to secure or seal connections. Use three screws per joint. It isn't full on "leaking" but there is a drop of water that seems to always be around the rim. unfortunately it's a 2 story house with a moderately steep roof angle (so super scary to go on the roof). You should have as much vertical rise as possible before there is a turn. The connection between the draft hood and the vent pipe should be secured with sheet metal screws – three per connection on a single wall pipe are recommended. When it gets hot, it melts and it is flammable. It may seem like a straightforward swap, but when you’re dealing with potentially lethal gases, O’Brian cautions, “It’s very bad to have even minor leaks.” In other words, take no chances. There’s also another, subtler reason to take your time: “Choosing a replacement water heater wisely often means avoiding unnecessary installation costs,” according to Daniel O’Brian, a technical specialist with SupplyHouse.com. This may come from the atmospheric air in the house, or it can come through a vent pipe that pulls air from the outdoors. Around the pipes under sinks and washing machines. Made with double-thick adhesive, strong reinforced backing, and a tough all-weather shell, this duct tape is great for projects and repairs both indoors and out. Does UC San Diego require all SAT scores? Other tapes, even duct tape, are susceptible to failure under the extreme heat. Take a second piece of Flex Tape and wrap it around the entire exhaust – including the first patch that you attached. Dryer vents should be sealed with foil tape as they can withstand the high temperatures encountered during machine use. It seemed kind of like caulk. What kind of tape do you use on a furnace? Otherwise, you’ll probably end up paying more than strictly necessary for installation. New construction, about 6 months old. Re: foil tape on water heater vent pipe; Author: jimmy-o (CA) Around here they generally do not allow the Transite ( asbestos) flue pipe to remain in place. We have insulated and sheetrocked the rest of the ceiling. No—but as much as water heater technology has changed in recent years, combustion water heaters remain the most common. This article has been brought to you by SupplyHouse.com. Inject the silicone caulk into the gap between the vent and the side of the house or foundation. The vent pipe has to run up hill a minimum of a quarter of an inch per foot. Is the leak on the top of the water heater?If so, continue on to the section below labeled “My water heater is leaking from the top” Run a bead of silicone caulk around the vent pipe opening in the roof. If your water heater seems like it’s on its last legs, or if it’s stopped working altogether, there’s every temptation to install a replacement as soon as possible. Then, finally cover the aluminum tape with a a steel can that you cut open. Luckily, we’re here to help. In general the vent pipe that comes up from the hood on the water heater should never be reduced. Squeeze the trigger with firm, even pressure as you move the tip around the seam on the furnace flue. Apply a thick bead of lap-seal caulk around the … How much you’ll wind up paying to heat water on an ongoing basis depends to a great extent on the type of water heater you choose. Is behind the wheel required in Illinois? All my sewage pipes are fine and last year i caulked all joints on them for just in case. Check if there are any droplets of water on top or on the bottom of the water heater tank, or inside the combustion chamber. Gas must continuously run upward toward the chimney entrance to provide proper draft. Draft hood and gas water heater vent pipe connections. Use the knife blade to scrape the pipe clean and smooth. Turn the water heater thermostat back to the appropriate setting. Cut the hole with the jigsaw. Definitely not on wall furnaces, and I think water heaters also. It does not draw properly. Around the fireplace. In the attic, use the plumb bob to mark the center of the hole to be cut for the roof vent boot. Cut the tip off your high temperature RTV silicone caulk tube with a knife. If you’re shopping for a solar- or electric-powered water heater, or if you live in a warm climate and plan on locating your water heater outdoors, then you don’t have to think about ventilation. Foil tape wins over duct tape in many aspects because of its strength. Indeed, it's recommended not to use it as a substitute in electrical wiring applications. What are the names of Santa's 12 reindeers? Roof Leaks Around Vent Pipes is Relatively Common. (If you spread mastic with your fingers, wear rubber gloves.). In the basement and laundry room floor drains. 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