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Posts tagged energy efficiency

Navien NR-240

Navien NR-240 Tankless Water Heater Information

Navien NR-240
Input : 20,000~199,000 BTU/h
Thermal Efficiency : 98%
Energy Factor : 0.95
Flow Rate
At 35˚F Rise : 11 GPM
At 45˚F Rise : 8.6 GPM
At 77˚F Rise : 5.5 GPM

Navien Offers Ultimate in Energy Efficiency with Hi-Tech Comfort

  1. Easy installation and PVC venting for Navien tankless
  2. 3″ SCH 40 solid PVC up to 100′
  3. Navien holds the industry’s highest energy efficiency rating – 98%
  4. Ready Link Cascade System
  5. Optional built-in recirculation system with buffer tank
  6. Advanced Eco Navien technology
  7. Extended lifecycle utilizing dual stainless steel heat exchangers
  8. Advanced remote control – NR-10DU
  9. Navien has the industry’s best warranty

Heat Exchanger

Navien tankless water heaters utilizes dual stainless steel heat exchangers, providing 3.8 to 4.5 times longer life-expectancy and erosion resistance over the copper heat exchangers used in other tankless brands. Navien’s heat exchangers operate with relatively low water temperature, minimizing damage from hard water conditions and maintains efficiency levels. Its always important to have your tankless flushed once every 2 years or so to remove any buildup from within the heat exchangers.

Efficiency

Because of Naviens high efficiency the tankless can be vented in PVC piping. Basically excess heat is exhausted with all the combustion gasses in conventional tank systems but a Navien uses this to further heat the water. This results in significantly lower exhaust temperatures and allows for the use of PVC exhaust vent piping.

Links and Further Info

Takagi-TH2S-tankless

Takagi T-H2S

The Takagi T-H2S is a new tankless model that Takagi has developed and is now offering. It is available in either Direct Vent or Outdoor models. Takagi’s T-H2S is a condensing tankless that is very energy efficient (up to 90% EF). The T-H2S was designed for residential applications and is a candidate for the ECOenergy audit rebate program and its $375 tankless rebate program.

The T-H2S Flow

Seeing as the T-H2S is one of Takagi’s greenest tankless models offering an average efficiency of 90% with natural gas and 90% with propane. If you choose this tankless model here in Ontario, Toronto, Barrie, or any of the surrounding cities expect a flow rate of about 4.1 GPM or 246 GPH with an input temperature at 40ºF or less.

Takagi states that the T-H2S tankless can provide at least two showers worth of water simultaneously in addition to one appliance.

Features

The T-H2S can be vented with PVC providing zero clearance for direct vent installations.
PVC venting can be used in all applications and a 3″ exhaust venting option is coming soon.
The TH2S utilizes dual exchangers to maximize the unit’s energy efficiency.
The primary heat exchanger is made of copper while the secondary is stainless steel.
This secondary heat exchanger is used to recover waste heat from the vent stack to preheat
the incoming ground water. This is in fact what classifies the TH2S as a condensing
tankless water heater.

Specifications

Natural Gas Input  Min. 13,000BTU   Max. 180,000BTU 
LPG Input  Min. 13,000BTU   Max. 180,000BTU 
Gas Connection  3/4″ NPT    
Water Connection  3/4″ NPT    
Condensate Water Drain  1/2″ NPT    
Natural Gas Pressure Inlet  Min. 5.0″WC   Max 10.5″WC 
LP Gas Pressure Inlet  Min. 8.0″WC   Max. 14.0″WC 
Weight  DV = 73lbs.   OS = 70lbs. 
Dimensions  25.6″ x 18.5″ x 12.4″    
Ignition  Electronic Ignition    
Electrical Supply  AC 120V (60 Hz)    
Water Pressure  Min. 15psi   Max. 150psi 
T-H2S-DV Manifold Pressure  Natural: 2.5″WC   Propane:4.3″WC 
T-H2S-OS Manifold Pressure  Natural: 1.9″WC   Propane:3.6″WC 

Interested in a quote for a Takagi? They are always free, Get a Quote!

Navien NR-180

Navien NR-180 Tankless Water Heater Information

Navien NR-180
Input : 15,000~150,000 BTU/h
Thermal Efficiency : 98%
Energy Factor : 0.96
Flow Rate
At 35˚F Rise : 8.3 GPM
At 45˚F Rise : 6.5 GPM
At 77˚F Rise : 3.8 GPM

Navien Offers Ultimate in Energy Efficiency with Hi-Tech Comfort

  1. Easy installation and PVC venting for Navien tankless
  2. 3″ SCH 40 solid PVC up to 100′
  3. Navien holds the industry’s highest energy efficiency rating – 98%
  4. Ready Link Cascade System
  5. Optional built-in recirculation system with buffer tank
  6. Advanced Eco Navien technology
  7. Extended lifecycle utilizing dual stainless steel heat exchangers
  8. Advanced remote control – NR-10DU
  9. Navien has the industry’s best warranty

Heat Exchanger

Navien tankless water heaters utilizes dual stainless steel heat exchangers, providing 3.8 to 4.5 times longer life-expectancy and erosion resistance over the copper heat exchangers used in other tankless brands. Navien’s heat exchangers operate with relatively low water temperature, minimizing damage from hard water conditions and maintains efficiency levels. Its always important to have your tankless flushed once every 2 years or so to remove any buildup from within the heat exchangers.

Efficiency

Because of Naviens high efficiency the tankless can be vented in PVC piping.  Basically excess heat is exhausted with all the combustion gasses in conventional tank systems but a Navien uses this to further heat the water. This results in significantly lower exhaust temperatures and allows for the use of PVC exhaust vent piping.

Links and Further Info

Links

Tankless Water Heater Solutions Directory
Find tankless and hot water heater distributors. Showcasing the latest tankless hot water heater developments, news and trends to improve energy efficiency, lower costs and save the environment.

Rinnai –  American Made Tankless Water Heaters.

Paloma — Tankless water heaters will serve your domestic hot water needs years to come with reliable performance

Navien — Navien tankless water heater official site

Bosch — Bosch official tankless water heater site

Takagi — Tankless water heaters by Takagi

Noritz — The Noritz tankless water heater website

Home Energy Audits — Ontario home energy audit service organization

Home Air Conditioners — Central Air Conditioners for your home that meet rebate requirements

Audit

Save $500 to $600 With a Home Energy Audit

Want to save Between $500 and $600 dollars off your new tankless water heater? Through the Ontario Governments Eco energy program if you have an energy audit preformed on your home and then install a tankless water heater you WILL receive the grant money.

This is a great opportunity and it allows home owners to take advantage of the available Government grants. The Eco Energy Retrofit program is a efficiency test for your house which takes a few hours. 30 days after the energy audit is conducted you will receive a detailed report of your home. This report outlines ways in which you can improve your energy efficiency as well as save money.

Find out more here  http://homeecoenergyaudits.ca

Click here to view a sample PDF report

  • The Initial audit will cost $175 *
  • The Second follow up audit is scheduled once all retrofits have been completed this will cost $150.  This Audit confirms that all claimed retrofits have actually been completed.
  • More >