Over the years, we have received many questions regarding combined venting of furnaces and water heaters. The main concern has been whether or not a gravity-vented water heater flue can be connected to the fan-assisted flue of a Plus 80 AFUE-rated forced air furnace. The National Fuel Gas Code, section That conclusion has led many inspectors to make faulty disclosures in their reports. The purpose of this article, therefore, is to explain the meaning and intent of the pertinent code requirement and to clarify when vent systems can and cannot be installed in common. Category I Furnaces are the type most commonly used for residential heating. They include old-fashioned gravity-vent furnaces and the newer fan-assisted Plus models, also known as induced-draft furnaces. In a gravity-vented furnace, the heat of combustion provides sufficient stack effect to enable safe venting of combustion byproducts. Stack effect occurs because the hot gases inside the flue have lower density than the cooler atmosphere outside the flue. A Plus 80 furnace is designed for greater fuel efficiency than a standard gravity-vented furnace.
Multiple Hot Water Heaters
Prep Work Run the sheathed cable from your circuit breaker to your thermostat location. Run the remaining cable from the thermostat location to the location where your garage heater will hang Install the junction box at the location where your heater will hang with two screws Support the sheathed cable with the cable straps Helpful Hint: It’s best if you space the cable straps approximately 4 feet apart with cable straps approximately 12″ from the junction box, thermostat and panel.
Re: dual water heaters; Author: HytechPlumber (LA) The way you described it piped up is called “In Series”. The water heaters should still work, but, the first heater should be .
SomedayHouse New Member mntgoat, You may want to read the posts in the “Is a buffer tank always better than a single tank? It really helps if you align your expectations to what a DSH can actually do. From what I’ve read on this forum and our own limited experience, the “value” of a DSH for domestic water heating depends a lot of factors.
And conversely the lower your demands the more likely that the GSHP is running in stage 1 most of the time and hence the DSH produces less hot water unless… you give the DSH a large volume of water or a long time to produce the hot water in a buffer tank. For example, we’ve been running our DSH as the only heat source for a 50 gal Marathon water heater while we are still finishing out the interior of our new house.
Despite temps in the Fs nearly every day, our 3 ton Climate Master Tranquility 27 has only been able to get the water up to degrees after more than a month. Maybe it is because our new house has a very efficient spray foam insulation envelope and we only require the GSHP to maintain 78F during the day and 82F overnight since we aren’t working there.
How to Install a Water Softener (with Pictures)
Shopping guide for best tankless water heaters Last Updated November Traditional water heaters are fickle friends in many ways. During heavy use, the or gallon reservoir can be emptied faster than it refills and heats, leaving someone in a cold shower. While water heaters have been a staple in homes for decades, their inefficiencies have led to a new breed of home hot water systems — the tankless water heater.
The tankless water heater is a mega-sized version of an electric tea kettle.
Dec 14, · Parrallel is the way to go for two water heaters In series, one heater will be doing most of the work heating the water, while the 2nd one is acting like a storage tank only firing to maintain temperature under no flow.
The obvious advantage for this heater is the price, which is pretty unbeatable. Since it is an electric heater, it will cost less upfront to install, and if it lasts even only a year and a half, it will pay for itself. Previous buyers reported that this one easily paid for itself in less than two years! It has a maximum flow rate of up to 4 gallons per minute GPM , which is very impressive at this price. Such a high flow rate means you can be taking a shower while someone in the next room washes their hands.
This latest version adds a user-friendly digital thermostat. It has a simple dial and very accurate temperature readout, accurate to within a degree. It has improved copper immersion heating elements and Cons: The flipside of being a small unit means that it is not the most powerful. Reviewers say that the flow rating might not live up to expectations in cold climates, especially in larger households.
RV Water Heater Basics, Types, and Maintenance
A geothermal heat pump can be used for hot water, snow melt, ice-making, and even pool heating. Using a geothermal heat pump for hot water heating can actually make your heat pump even more efficient! A desuperheater captures the heat that is naturally lost by running the heat pump. As efficient as a geothermal heat pump is, there is a small amount of heat produced by the pump that is not used to heat your home.
A desuperheater captures this expended heat and pumps it to the hot water tank. Aside from the desuperheater you will not need any additional components.
Equipment being equal, two or more heaters connected in parallel will deliver more hot water than the same heaters connected in series. In a parallel configuration, the hot water demand is taken equally from each unit. For every gallon of hot water drawn from each unit, one gallon of cold water is introduced into the water heater.
General What type of water heater should I install? There are literally thousands of models from which to choose. Click here to find a contractor in your area. Why does my red reset button keep tripping? If button snaps back out, the temperature of the water is higher than the cut off setting of the limit switch. Allow water temperature to drop. Service Bulletin Why does my relief valve keep popping out?
Recently, more housing developments are being constructed in areas where the local water utility is supplying these projects with extremely high water main distribution pressure. Contractors are installing water pressure reducing valves in the service. These reducing valves are available with or without a back flow check. Service Bulletin Why does my pilot light keep going out?
Official Hardy Heater Website, From The Maker, Hardy Mfg. Co., Inc.
Ben on October 10, – 1 Comment The efficiency of a solar thermal system increases as the temperature of the water flowing through the collectors decreases. This is just basic physics. Systems that are designed and operate with this principle in mind will generate energy more efficiently. For example, suppose a solar water heating system starts up in the morning with the solar storage tank at 70F.
That means 70F water goes into the collectors to be heated.
How do you hook up two water heaters? I have 1 for the kitchen area and two on the other side of the house for the living areas. These are the large ones (about ft tall). There doesn’t seem to be any more reserve than if it were one. Currently there is cold in split by a .
Keep reading to find out how the built-in geothermal water heater works. How Geothermal Water Heaters Work Heat pumps reduce hot water costs through a component called a desuperheater. While most geothermal heat pump manufacturers have this as an add-on, all of our residential heat pumps come with a desuperheater included for domestic hot water preheating — even our air source heat pumps. A desuperheater is a small double-wall heat exchanger that takes this extra heat from the discharge gas and puts it in your domestic hot water tank.
A geothermal heat pump heats your home using a compressor. The compressor produces extra heat, which is what we use to preheat your domestic hot water tank. The desuperheater harvests the extra heat using a pump and heat exchanger and deposits it into your electric hot water tank. Since we are harvesting waste heat, the desuperheater does not affect the heat output of the geothermal heat pump.
Desuperheaters operate in both heating and cooling mode, but the greatest savings occur in heating mode and the savings while in cooling mode are relatively small. According to the U. Energy Information Administration , domestic hot water heating makes up approximately
How a Geothermal Water Heater Works
With two outdoor models to choose from, you can now enjoy endless, demand hot water while camping or at your cabin. Great for base camps, outfitters, emergency responders, RV’s, boats and food vendors. Put one in the barn or horse trailer to take a shower and wash your horses. Perfect for dog grooming or showering by the pool. Simply connect the gas hose to a 5 gallon propane bottle and attach a garden hose or 12 volt pump to the heater.
I moved into a 5 year old home with the original water heater installed. It is a “State” 73 gallon unit rated at 40, BTUH. I want to connect a GE 40 gallon unit to it rated at 34, BTUH.
Canadian Capitalist June 22, at If you can handle it, self-insurance is cheaper in the long run. It does seem to me that renting is at least competitive with owning in your case. Yes, I do wish I had acted on your post. I agree that those planning to move shortly would be better off renting and passing the contract over the new owner. TonyR June 22, at Here the tank is considered part of the house just like th furnace. Out of curiosity, how old was your old tank when it died?
Installing a new hot water heater
I currently have a 50 gallon electric, but it is not enough for our current needs. I would like a few articles including a schematic or drawing of how they should be installed. For example, I am planning on installing them in series, is this recommended? Do you put the larger one first in the series or second? Are there any things I should be aware of about trying to install a second water heater?
How to hook up 2 hot water heater system? Asked Oct 17, , PM — 7 Answers I am trying to hook up 2 hot water heaters in one house, (natural gas).
Temperature accuracy within degrees of settings Safe choice with built-in thermal cut out Draft-free heating Fins for widespread coverage Installing a baseboard heater is simple. There are two brands that we carry requiring hardwire installation, Cadet and QMark. First, we’ll review Cadet. Determine where you want to install the heater. The seam at the junction of the wall and floor behind the heater should be caulked to prevent dust from being drawn into the room.
The heater should also be flush against the surface of the wall. Place it either under a window, along an outside wall, or as close as possible to an outside door. Do not install heater beneath an electrical outlet. The heater may sit directly on any floor surface, including carpet. Do not allow carpet to block lower air intake located 1 inch from the bottom.
Be sure it is clear of all obstructions and that there is a 12 inch clearance between the heater and drapes. Determine which side of the baseboard you plan to wire. It can be wired to the right or to the left of the unit.
Google Answers: Installing 2nd Water Heater
The correct size for your specific household needs, however, depends on the temperature of the groundwater as well as the flow rate of the hot-water fixtures and appliances showerheads, bathroom sinks, dishwashers, clothes washers, etc. David Chisolm, brand manager for A. This is done by adding up the flow rates of all fixtures and appliances. Typically, each fixture has a flow rate of 2.
If your hot water usage areas say, a kitchen and bathroom are on opposite ends of your cabin, it does take a bit for the hot water to move through the long run of pipes.
First, there are two ways to hook up two water heaters: series and parallel. SERIES. In series, the water comes in to the first water heater, then passes through the second hot water heater, and finally goes to your fixtures. If you turn off the second water heater, then the .
Zodi Hot Tap fool you This little work horse will provide you with endless degree hot water for showering, washing your hair, cleanup and dishes. In seconds you have endless hot water. Zodi offers the Hot Tap in three sizes. From the lightweight, easy to pack Traveler single burner to the high performance 4 season twin burner HP or the high output X40 Outfitter, there is a Hot Tap for everyone.
Ideal for camping, hunting, RVs, cabins, boats, home emergencies and more. We have been selling Zodi heaters for over 10 years. They make rock solid products and back them up with excellent customer service. Equipped with a stainless steel burner, this Zodi shower provides endless hot water in just seconds. Includes a rugged plastic case that doubles as a 4 gallon water container.