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Tankless Hot Water Heaters, Efficient, Effective, Endless.
Posts tagged increase
Navien Condensing Tankless 98%
Apr 22nd
Navien Condensing Tankless 98%
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Navian tankless water heaters are rated at up to 98% efficiency; this is achieved through a process called 
condensing. This is the highest rated condensing tankless available on the market today. As a result if the Navian’s high efficiency an average house can expect to save about 40$ additional over a conventional non condensing tankless Water heater. Compare it to a conventional tank type water heater and you could potentially save more than 160$. Efficiency is the key for the future, we need to get more out of what we now have less of. 98% of the energy used in this Navian unit actually works to heat water and is not just blown out the exhaust vent. The chart should help to determine what size of Navien tankless water heater you might need to meet your home/familys domestic hot water needs.
Navian has now moved to dual stainless steel heat exchanges in its tankless water heaters, they claim that this material offers 20 times more corrosion resistance and increased condensation damage. The Navien Tankless water heaters are also employing a new air pressure sensor that senses incoming and oxygen and can compensate for long vent runs to maximize efficiency in the combustion chamber.
Navien has also updated their website so check it out here. Visit Navien’s Website
Get a Free Consultation on a Navien for Your Home – Call Toll Free 1-855-696-8265
Solar Water Heater and Tankless Update
Apr 21st
Solar Water Heater and Tankless
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One of our readers is working on installing a domestic solar hot water heater in conjunction with a tankless. They were going to go with a Rheem tankless to offset any additinonal temperature increase that was needed over the solar gains. Unfortunately they found out that the particular unit that they were planning on using senses the incoming water temperature, buy ‘ignores’ water that is within 40F of the target temp (ie. the unit won’t cut on to work). This has caused them some problems because:
1) The max output on any residential line is 120F (49C) (this is canadian law it cant be any hotter than this in a residential home).
2) If the solar heated water comes in at 100F (37C) or warmer, the unit will not kick on. This means the output is 37C, a cold shower to be sure.
3) If you go to the commerical unit, the max temp is 180F. This much too hot for residential use (think of someone turning on the hot water at the sink to do dishes), but it would work from the 40F differential standpoint (ie. if the water is 60C or colder, then the unit will fire, anything warmer than 60C doesn’t matter as it would be warm enough for a shower). Again this is illegal in Canada as the Max allowed Temperature is 120F.
The best solution is to more to a Rinnai Tankless water heater as this unit only requires there to be a 20 degree farenheight differentiation between water to be heated and heated water. Therfor your shower will at the very least be 100 degrees farenheight which is plenty warm enough.
These co-heating water heating systems are quite complicated so its important that you talk to a prefessional regarding any plans that you have for your home or cottage. Feel free to send us an email if you have any questions.
Grant Money Increased By 25%
Apr 1st
25% more for a new Tankless
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Part of the government’s economic action plan is to boost the eco energy retrofit program that is currently running. The government has increased all available grant money for energy efficient retrofits by 25%. Additionally the program has been expanded with a 300 million dollar increase in funding over the next two 
years.
You can download the new PDF here
Initially the program gave home owners 18 months to complete all retrofits, perform the E audit and submit files for rebates. This has now been extended and homeowners that are past their 18 month time frame can still perform retrofits and get access to additionally grant money by performing a F-audit.
This is really significant for The Tankless Hot Water Guide as the additionally grant money will further reduce the cost of tankless water heaters for consumers. A tankless with an efficiency of .82% or better will get you 630$ in rebate money. If you decide to go with a condensing tankless water heater the grant money is even better (.94% efficiency or better) this will net you a 750$ cheque from the government.
You cant find a better time to get go out and get a tankless water heater.
Condensing verses Non-Condensing Tankless
Mar 27th
Condensing verses Non-Condensing
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Tankless water heaters come in two different efficiency styles, condensing and non condensing. A condensing unit will recover more than 85% of the gas that a regular tankless water heater would otherwise vent out. Navien or “Navian” makes a tankless system that is 98% efficient by employing the condensing system. The high efficiency is gained by allowing the relatively warm exhaust gases to transfer otherwise wasted heat to the incoming water preheating it before flowing through the primary heat exchanger. This adds about a 10 to 15 percent efficiency increase to a tankless water heater which in itself is already quite efficient.
Now the grants that are available from the provincial and federal government are 
different for a condensing and non condensing tankless water heater. A condensing unit will receive $600 in total grants or $300 from each government level. The non condensing unit will net you $250 from provincial and federal netting $500 total. The governments trying to reduce energy consumption and pollution emissions would naturally give more grant money to tankless water heaters that are the most efficient.
