Comparison between electric tankless water heaters

Comparison of temperature rise between Adtec 42A tankless hot water heater and other comparable heaters on the market.

MAKE MODEL AMPS VOLTS KILOWATTS 1GPM 1.5GPM 2GPM WARRANTY

ADTEC 42A 46 240 11 76F 53F 38F 5 YR - MECHANICAL

SYSTEMS 10YR-HEAT EXCHANGER

BOSCH - AE-12 50 220 12 72F 52F 42F 1 YR - MECHANICAL

POWER STAR 5 YR - HEAT EXCHANGER

BRADFORD- EFC-9500- 40 240 9.5 65F 43F 32F 1 YR - MECHANICAL

WHITE 4-S-10 10 YR - HEAT EXCHANGER

STIEBEL - 12 50 220 12 60F 54F 33F 3 YR - LIMITED WARRANTY

ELTRON (DOES NOT SPECIFY)

EEMAX EX20TC 48 240 11.5 59F 52F 39F 1 YR - MECHANICAL

SERIES TWO 5 YR - HEAT EXCHANGER

Typical Water use Flow rates
- Bathtub 2-3 GPM - Shower – 1.5 –3 GPM . - Kitchen Sink – 1 -1.5 GPM - Dishwasher - 1 – 3 GPM

REFERANCES

Bosch – Power Star
http://www.boschhotwater.com/BoschHotWatercomHome/PointofUseProducts/PowerStarModels/FeaturesandSpecs/tabid/525/Default.aspx
Stiebel Eltron Tempra - http://www.stiebel-eltron-usa.com/techdata_tempra.html

Eemax – Series Two - http://www.eemaxinc.com/commercialseriestwo.htm

Bradford-White – Kwikshot - http://www.bradfordwhite.com/images/shared/pdfs/specsheets/217b.pdf

Adtec Tankless http://adtectankless.com/42Atechsheet.html