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Are tankless gas water heaters more efficient than tank type gas water heaters?
Pjhmhsjsu
not only more efficient, but with tax breaks and gas company credits they are very competitive pricewise if you can find a floor model like i did. even if you can't it will pay for itself in 2 years and has a longer warranty than a tank
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∙ 16y ago
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What are the comparative advantages and disadvantages of electric and solar water heaters?
Solar hot water heaters need sunlight to work. While you can store the heat and create closed loop systems that protect the system from freezing, the use of solar hot water heaters really makes sense if you have full sun exposure and are willing to moderate your usage. It also may cost more to install a domestic solar hot water system. These can run on 12v oe 11v for the pump, or you could go passive- there are many different types and options. Check Home Power mag. Electric hot water systems come in two flavors; tank and tankless. For electric tank systems, the cost of heating water with electricity can be quite large. These tank heaters store hot water and are using electricity just to keep the tank warm. This is not very efficient even with insulating blankets. Once you run out of hot water in the tank(as cold rushes in) your shower is over. The heater itself is usually inexpensive. Plumbing is straignt foward, with 30 to 40 amp 220V feed required. Tankless water heaters or "on demand" water heaters (both gas and electric) are fantastic! They are the least expensive to operate, and fairly simple to install. The electric tankless heater requires no exhust ducting and is perfect for under the counter usage or with larger units can heat the water for an entire home. The tankless design never runs out of water! These are perfect for solar installations that may encounter weeks of cloudy weather. The units are more expensive than tank heaters, and usually require 220v service (if electric). if your doing reseach on this great if not get a life losers
Is an electric hot water heater 100 percent efficient?
No, but close to it.In regards to just the heating of the water, Tank-type, and tank-less, electric water heaters are about 99% efficient* because the heating elements are immersed in water, and little energy is wasted between heat source and water.However, all tank-type water heaters loose heat from their reservoirs (tanks). This heat loss lowers the overall efficiency.Most electric heaters fall between 90-95% total. This is the number that is usually reported by the manufacturers.* Efficiency is not the same as cost savings. For example electric heaters have higher efficiency, but cost more to operate than same-size gas water heater. Also tankless gas heaters, gas water heaters with blowers, and gas heaters with high recovery may claim higher efficiency, but they consume more fuel per hour of operation.Additional Information:Efficiency of heating elements does not consider inefficiencies in production, transmission, refining, and delivery of electricity. Estimates say coal-fired power plants waste half the energy of coal during electric generation. However hydroelectric power plants are very efficient.Tank-type gas water heaters are 69% efficient, since hot combustion gas escapes out the flue after hydrogen content of fuel is burned. This number does not consider inefficiencies during production, transmission, refining, and delivery of gas.Tank-less gas water heaters are 79% efficient, but tank-less burn more gas per gallon of hot water than tank-type heaters. Hot combustion gasses are released out the flue and are not actively recycled without slowing combustion which turns off unit. Newer type tank-less with blower recycles heat into a tank operate at 96% efficiency, and are made for oversize consumption of both energy and hot water.High efficiency tank-type gas heaters operate at 96% efficiency by using blowers to circulate hot combustion gas through coiled tube located inside tank. Same amount of combustion gas is released since only heat is recycled. The use of electric blower affects overall cost.Environmental efficiency: Electric water heater does not release CO2 at each home, instead CO2 is localized at power plant. Gas water heaters release CO2 at each home which factor in environmental efficiency.Efficiency of all gas water heaters falls and cannot be fully restored if untreated hard water deposits sediment over heat transfer surface. Generally, gas heaters exposed to hard water require softener which affects overall efficiency.Efficiency of tank-type electric water heater remains at 99% until sediment reaches element, causing element to burn out. Full 99% efficiency is restored by cleaning out tank and replacing element. Generally, tank-type electric heater does not require water softener.Downsizing water heater, reducing consumption, selecting water heater with fewer parts, reading the manual, and draining tank each 6 months to avoid sediment are key to saving energy.
Are plant cells more efficient in carrying out its functions than animal cells?
No, Plants are not more efficient. Animals are more efficient because they coordinate by hormones and CNS ( Central Nervous System ). But plants coordinate only by hormones, therefore animals are more efficient.
Are new electric baseboard heaters more economical than those made in the 1970's?
Not really. Baseboard heaters are rated in watts. W = Amps x Volts has not changed since electricity came into being. What has changed are some of the designs of the baseboard heaters. Some heat oil in the baseboard heaters, which dissipate the heat out at a more even heat. On the market now are new types of thrermostats that pulse the baseboard heaters for a more regulated heat rather just turning them on when the thermostat calls for heat and turns them off when the thermostat is satisfied.
Are propane heaters better than electric heaters?
Oil much hotter flame and does NOT explode Propane is cleaner and is not considered toxic waste like an oil spillage Propane pockets thus it is a lot more dangerous Oil more moving parts (Burner motor ,filters etc)
Do tankless water heaters cost more than normal water heaters?
Yes, the tankless water heaters do cost more than the normal water heaters because tankless water heaters are designed to supply hot water only when needed unlike normal ones.
Are tankless water heaters available?
Tankless water heaters are available at most hardware/construction retail stores or online stores. Tankless water heater are much more expensive than regular water heaters.
Are tankless water heaters more effecient than the more traditional ones?
Yes, tankless water heaters are more efficient than traditional ones. This is because they only heat the exact amount of hot water you use, rather than continually heating hot water in a tank and having to keep it warm.
What are tankless water heaters and how are they used?
Gas tankless water heaters use high-powered burners that quickly heat water as it runs through a heat exchanger. It is 22 percent more energy efficient on average than the gas-fired storage-tank models.
Are Tankless Water Heaters more efficient than regular water heaters?
Tankless water heaters are more energy and cost efficient than your typical water heaters. Of course, each person has their own needs and it is always a good idea to weigh out the pros and cons before making any decisions for a change. What works well for some may not work well for other.
What is the most energy efficient water heater I can buy?
A tankless water heater is much more efficient than a traditional water heater because it only heats the water that is being used instead of heating and reheating water stored in a tank. Rinnai, Rheem, and Bosch all make versions of tankless water heaters that are well-reviewed.
What's the advantage of an on-demand (tankless) water heater?
A tankless water heater is much more efficient as it "flash" heats the water.
Save Money With A Tankless Hot Water Heater?
A tankless hot water heater is both more environmentally friendly and economically sound than traditional storage units because it only heats water for use on demand as it is needed. These water heaters are less wasteful and generally more efficient. However, smaller units are sometimes challenged in meeting multiple demands for hot water at the same time. For a large family or home, consider purchasing a whole house tankless hot water heater system. Another option is to install multiple tankless hot water heaters to operate the dishwasher or washing machine separately.
Is a tankless electric water heater more efficient than a gas water heater?
Normally NO
What are some of the benefits of owning a tankless water heater?
Tankless water heaters do not have a tank with a reserve of hot water that must be kept at temperature until there is a demand for it. Depending on the age of the water heater, this could result in a lot of wasted energy. Tankless water heaters heat the water as it is needed. These units are more expensive, but in the long run result in savings, both of money and energy.
Save Water and Money with a Tankless Water Heater?
A tankless water heater system can save you hundreds of dollars a year on your energy bill. It is also designed to use less water, which will save you money on your water bill. Tankless water heaters are common in European architecture and are beginning to be more popular in the United States. Only Heat the Water You Use The way the tankless water heater works is that there is a heating element that heats the water as it goes through the pipe to the tap that is turned on. Since the water is not heated until someone turns on a tap, there is no need to keep a large amount of water warm during the day and night. Tankless water heaters make it possible to have as much hot water as you need as soon as you need it. They are far more efficient than the traditional water heaters that store several gallons of hot water all the time. No Water Storage Necessary Tankless water heaters eliminate the need to keep hot water on hand in case it is wanted. The water that is used by the tankless water heater is the exact same water that would be used if you turned on the cold water tap. The only difference is that the hot water is heated by a powerful heating element as soon as it passes through the pipe. Eliminating the need for water storage makes the hot water from a tankless system cleaner and more environmentally friendly. Water is Hot Immediately Tankless water heaters deliver hot water as soon as the tap is turned on. You do not have to run the water for a few minutes before it begins to be warm. The heater provides instant water heating as soon as the water passes through it. Tankless water heaters also provide enough hot water for as many applications as necessary. Since there is not a limited supply of water that has been heated, there is no opportunity for the hot water to run out because too many people are using it at once. Tankless water heaters provide an endless supply of hot water that is available on demand.
Is a Tankless Water Heater the Best Choice?
The energy saving potential of tankless water heaters has led many consumers to consider replacing their storage tank water heaters with tankless models. Tankless water heaters only heat water when it is needed. The U.S. Department of Energy estimates a tankless heater can reduce water heating costs by up to 30 percent. The small size of the tankless heaters is also attractive where there is limited space. And, although there may be some maintenance costs, tankless heaters should last longer than storage tank water heaters. However, the initial cost of a tankless water heater is significantly higher than the price of a new storage water heater. Forty to fifty gallon standard storage water heaters cost from $300 to $650 at a major home store. The same store sells a 7.4 gallon per minute tankless water heater for $1,200. The cost of installing a tankless water heater is also significantly higher. Local plumbers, home stores and handymen have competitive pricing on the installation of storage water heaters. It is a quick job for an experienced installer. A tankless heater may require costly electrical work and new gas piping. The more complex installation process can be time consuming and may require specialized workers. In a 2008 article, “Consumer Reports” estimated that it would take 22 years of energy savings to recoup the higher cost of a tankless water heater. Energy rebate programs and tax credits may be available to reduce the net cost of a tankless heater or a highly efficient storage tank heater. Check programs sponsored by government agencies and utility companies before deciding on a purchase since discounts, rebates and other incentives can help a tankless water heater pay for itself in significantly less time. Rising energy costs may also make a tankless heater a more attractive financial proposition. Of course, cost savings are not the only reason to purchase a tankless water heater. Some consumers are focused on reducing their energy use. Recovering the cost of switching to a tankless heater is less important to them. If your priority is reducing your carbon footprint, a tankless water heater can help accomplish that objective.
