04/25/24 installed
05/09/24 working well so far
Cold Water Supply Temperature
- currently where i live the incoming cold water temp is 59 deg (inlet temp)
- the water heater is set to 120 deg hot water out (default outlet temp)
- this means the water heater has to raise the incoming water 61 degs (from 59 to 120)
- i can run a 2.0 gpm shower and 1.0 gpm faucet and have endless hot water.
- this means the water heater is providing a total of 3.0 gpm of hot water when the cold water coming in is 59 deg. it may provide more but i have not tried to run 2 showers yet. i will update this review when i do.
- will update this review the next winter when the incoming water temp drops.
- you can use a IR Temp Gun pointed at the bottom of a sink next to cold or hot stream to measure the water temperature..over a 5 minute period. a IR temp gun sells for $17 on amazon.
- you can also install low flow (water saver) shower heads to enable multiple showers to run at the same time.
- the amazon eco-27 page has a picture from the eco-27 brochure showing the cold water temperature for where you live and a chart showing the gpm of hot water out based on your incoming cold water temperature.
Power Requirements
- the eco-27 requires (3) 40 amp circuits w/ double pole circuit breakers (120 amps) so you need 200 amp electrical service/breaker box.
- you must use 8 gauge (awg) copper wires (8-2 w/ ground) from the circuit breakers to the water heater.
Flush Valves (Iso-Valves)
- the eco-27 uses 3/4" NPT threads so if you install flush valves buy 3/4" NPT flush valves (not IPS).
- i purchased these valves on amazon: HQMPC Tankless Water Heater Isolation Valve Kit 3/4" NPT
- you can see the Iso-valves in the picture
- iso-valves are optional. you may need them you may not. i put them so i have the option of flushing the eco-27.
- if your water is hard (lots of minerals, calcium, chalky white stains around faucets) then cleaning the heating elements is a good idea. note that water softeners remove some of the minerals from the water before the water reaches the eco-27.
- if you install iso-valves then once a year or so you can use pump vinegar thru the water heater to remove any calcium build up on the heating elements. there are youtube videos on procedure.
- you can also pull the heating elements from the unit and soak them in vinegar (only put the copper section in vinegar) so you do not have to buy/install iso-valves.
- you can buy a set of replacement heating elements on amazon as of 4/25/24 they are $69 for a set of 3.
Plumber Unions
- if you do not install flush valves, which is fine, you may want to consider installing plumber unions to make removing the water very easy. (Note flush valves include plumber unions as part of their design).
- with unions you can buy a replacement heater (hopefully you will not need to do this in the first 10 years after the installation of a eco-27) and install it yourself (you mightl save some big dollars by not needing a plumber come out and rebuild the connections to the water heat.
Purging the Water Heater of Air Bubbles
- if you turn off you water supply and turn it back on you may introduce air bubbles into the eco-27.
- to purge the air bubbles turn off the 3 breakers to the water heater and turn on a few hot water faucets for 5 minutes to ensure there are no air bubbles in the eco-27
Installation of Water Heater
- i had plumber come by in the morning to install the water heater.
- i had an electrician come by in the afternoon to install (3) 40 amp circuits. The old electric tankless heater used (4) 30 amp circuits that used 10 gauge wires so i had to have 8 gauge wire installed from the breaker box to the water heater.
Cost of Installation (including tax)
423 for the ec0-27 (amazon)
64 for the iso valves (amazon)
495 for the plumber
933 for the electrician
---------------------------
1915 total instaled cost
Documents
- you can go to ecosmartus.com to download several pdf documents on the water heater.
- you can also google eco-27 trouble shooting for a couple of very informative pdfs on trouble shooting.
| Brand | EcoSmart |
|---|---|
| Product Dimensions | 17"W x 17"H |
| Special Feature | LED Display |
| Color | White |
| Wattage | 27 KW |
| Voltage | 240 Volts |
| Maximum Flow Rate | 6.6 Gallons Per Minute |
| Maximum Temperature | 120 Degrees Fahrenheit |
| Heat Output | 27 Kilowatts |
| Style | ECO 27 |
| Maximum Pressure | 150 Pound per Square Inch |
| Mounting Type | Wall |
| Manufacturer | Ecosmart |
| Part Number | ECO27 |
| Item Weight | 10.98 pounds |
| Country of Origin | China |
| Item model number | ECO 27 |
| Is Discontinued By Manufacturer | No |
| Size | 17 x 17 x 3.5 |
| Pattern | Water Heater |
| Shape | Rectangle |
| Item Package Quantity | 1 |
| Special Features | LED Display |
| Included Components | electric tankless water heater |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Limited Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages. Proper and timely registration is required, or warranty is void. |
