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|Specifications||Tankless Water Heater||Conventional Water Heater|
|Max BTU.||194,000 BTU||Ave. 75,000 BTU|
|Size||1.6 Cubit Feet||Ave. 24 Cubit Feet|
|Dimensions||23.6″(H) X 13.8″(W) X 9.4″(D)||64″(H) X 26.5″(W)|
|Weight||46 lbs.||325 lbs.|
|Standby Heat Loss||0% – No insulation required||20%|
|Vent||4″ Diameter w/ Power Fan||Draft Hood|
|Computer Modulated Gas Valves||Yes||No|
|Computerized Safety Devices||Flame Rod, Thermal Fuse, Lighting|
Protection Device, Electric Leak Prevention
Device, Overheat Prevention Device,
Freezing Prevention Device, Fan Rotation Detector
|Electronic Flow Sensor||Yes||No|
|Minimum Flow Rate||0.75 GPM||None|
|Size of Exhaust Pipe||Inside: 4″ Round|
Outside: Vent Cap
|Powered Combustion||Yes (Fan Assisted)||No (Gravity)|
|Gas Connection||3/4″ NPT||1/2″ or 3/4″ NPT|
|Water Connection||3/4″ NPT||3/4″ NPT|
|Warranty||10yr. Heat Exchanger / 3 yr. Parts||1 yr. Parts / 5yr. Tank|
|Life Expectancy||10-15 Years||3-8 Years|
|Energy Cost||Saves up to 50% – Unit can pay for itself|
|Cost up to 50% More|
|Floor Space Saving||Wall mounted or outdoor installation saves|
$100 per square foot of floor space.
|Wastes $100 per square foot
of floor space.
|Ease of Installation||Small size allows for installation close to|
point of use, eliminating need for
recirculation systems for long runs of piping
|Big and Heavy. Requires mechanical closet
and/or barrier post and stand. May
need recirculation system and
additional structural requirments.
|Total Installation Cost||Total cost of installation roughly the|
same. Less components and bulk
|Cost roughly the same.|
|Service Ability||All parts are replaceable – Full unit|
replacement not necessary.
|If tank leaks, entire unit must be
|Tank Leakage||Tank cannot leak – NO TANK||Tank leakage can cause expensive
property damage and safety concerns.
|Scaling||No storage prevents most cases of|
scaling. Scale can be easily cleaned and
flushed out of the unit.
|When scale develops, unit must be
|Hot Water Capacity||Unlimited and Instantaneous.||Tank is cold when 70% of capacity
has been used. Full recovery time
can be 2 to 3 hours.
|Control of Water Tempature||Digital remote controller sets water|
|Either preset from manufacturer
or with imprecise knob.
We we’re impress with Choate’s responsiveness to our needs, Choate’s was one of two companies opened on Saturday and Sunday for HVAC repair. Juan the customer service rep., was friendly and honest about pricing. Second Mike our technician was timely, we were given a window from 1-6pm for the next day, but Mike showed up exactly at 1pm, he was willing to help, very friendly and knowledgeable on the repair. As a result of his friendliness we decided to sign up for the Choate’s family plan (a regular service offered for a monthly fee of $30) to save money and Mike made the repairs and we are grateful, and Choate’s is now our only call for services, and we recommend Choate’s for area’s families as well.James H., Memphis