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That’s gas marketing bullshit. The AFUE rating for electric baseboard heating is 100. The AFUE for heat pumps CAN EXCEED 100. The MOST efficient gas water hea
by rocket_surgeron 4y ago
That’s gas marketing bullshit.
The AFUE rating for electric baseboard heating is 100. The AFUE for heat pumps CAN EXCEED 100.
The MOST efficient gas water heaters use 11.9MMBtu/yr.
The LEAST efficient electric water heaters use 8.9MMBtu/yr.
The MOST efficient electric heat pump water heaters use 4.2MMBtu/yr.
Converting gas into BTUs by burning it in a power plant and transmitting it to a home is much better than burning it in the home.
Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers
Lawrence Berkeley National Laboratory Environmental Energy Technologies Division
https://www.osti.gov/servlets/purl/1016713 https://www.osti.gov/servlets/purl/1016713
- ars 4y ago> Converting gas into BTUs by burning it in a power plant and transmitting it to a home is much better than burning it in the home. This is utterly false, as multiple people, and multiple sources of data have shown you. At this point you either have to update your knowledge and accept reality, or acknowledge that you are being willfully ignorant, and quit making false statements.
- pandaman 4y agoI understand you believe this, but can you explain this discrepancy between the water heaters? I figure by the least efficient electric heater you mean a resistive one, so it's close to 100% efficiency, right? There are plenty 90% and 95% AFUE gas heaters on the market, let's say 90% is the most efficient so it should be using 1.1x more energy than a 100% efficient resistive heater but in your numbers the gas heater uses 1.33x more energy. I.e. you claim the most efficient gas heater is 75% AFUE? I don't think these are even legal to sell in the US any more.