Tankless Hot Water Heaters, Efficient, Effective, Endless.
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How a Tankless Works
Oct 7th
Rinnai and Tankless Explanation
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This is a great video done by Rinnai that explains how a tankless hot water heater works compared to a conventional tank type heater.
Rinnai Concentric Venting
Apr 28th
Rinnai Venting
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Rinnai tankless water heaters use a single tube for their venting, how do they do this? It’s quite a simple process that prevents two holes from being drilled in your wall. As you can see in the picture of the elbow, the vent pipe has two distinct sections. This type of venting piping is called concentric venting. 
The tankless concentric vent pipe handles both the incoming supply air as well as ejecting the toxic exhaust gases. This form of tankless venting can save an extra hole in your wall and thus reduced risk of air leakage.
Concentric venting is really quite expensive as the pipe is made from stainless steel. On average you are looking at about 60 dollars per foot plus installation. This is why it important to position a Rinnai tankless water heater as close as possible to its venting termination point.
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
Tankless Installation Time
Dec 14th
How Long Will A Tankless Take to Install?
This can be a difficult question to answer as there are a number of factors that need to be taken into account. They range from
- Relocation – Does it make sense to move the tankless closer to hot water demands? does this involve moving the gas lines? Is there a venting issue that requires it moved?
- Size / Mounting - The Tankless is significant smaller then a full sized convential tank, this allows it to be mounted numerous locations.
- Venting – All tankless systems have unique venting requirements this may play a factor in its positioning, get a free evaluation here.
- Type – Do you want a propane, natural gas or electric tankless system? These factors can all play a part in tankless installation times.
The installation crews are scheduled to do 2 tankless installs per day, so most installs rarely go past 4 hours (quite a few have been installed in less than an hour). If you decide to go ahead with the tankless system, be that rental or purchase its a safe bet to allocate 4 hours for the install.
