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2. How Much Does It Cost to Replace a Water Heater? - AOL

   www.aol.com/much-does-cost-replace-water...

   Gas water heaters cost between $600 and $2,700 to replace, for an average cost of about $1,650. Electric water heaters cost between $600 and $3,500 to replace , for an average cost of about $2,100.

3. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

4. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   Mobile water heater in a train car (Russia) Tankless water heaters provide many advantages: [8] Long term energy savings: Though a tankless water heater typically costs more initially, it usually costs less to operate because of lower energy use—since it only heats water when required instead of continuously maintaining a tank of heated water ...

5. Autonomous building - Wikipedia

   en.wikipedia.org/wiki/Autonomous_building

   Current practical, comfortable domestic water-heating systems combine a solar preheating system with a thermostatic gas-powered flow-through heater, so that the temperature of the water is consistent, and the amount is unlimited. This reduces life-style impacts at some cost in autonomy. Solar water heaters can save large amounts of fuel. Also ...

6. Solar water heating - Wikipedia

   en.wikipedia.org/wiki/Solar_water_heating

   The tested SWH system had about 20% of the impact of an electrical water heater and half that of a gas water heater. [ 51 ] Analysing their lower impact retrofit freeze-tolerant solar water heating system, Allen et al. (qv) reported a production CO 2 impact of 337 kg, which is around half the environmental impact reported in the Ardente et al ...

7. New York Central 3001 - Wikipedia

   en.wikipedia.org/wiki/New_York_Central_3001

   Between 1916 and 1930, the New York Central Railroad (NYC) ordered 4-8-2 L-1 and L-2 steam locomotives, replacing the 4-6-2 Pacifics for use on fast mainline freight trains. [ 4 ] [ 5 ] [ 6 ] While the other railroads referred to the 4-8-2 wheel arrangement as Mountain , the NYC uses the name Mohawk after the Mohawk River, which ran alongside ...