The Eternal® tankless water heater is so sleek and elegant that you could install it in your living room. It is also resilient and durable enough to install outside of your home but requires an outdoor kit. The small size of this water heater is half of a standard 50-gallon conventional tank water heater but with up to 300% more output capacity. In addition to the small size, Eternal uses between 35% to 50% less energy than a standard 50-gallon gas-fired tank. Eternal also leaves one of the smallest carbon footprints in the industry. At just 3ppm NOx, it’s the only gas-fired water heater that has almost zero emissions.


Eternal’s patented heat exchanger features an infrared burner that pushes heat down and then back up 44 baffled pipes. This process uses the heat twice as opposed to standard burners that exhaust wasted heat straight through the top. Water surrounds the pipes to eliminate scale buildup that can occur inside piping. The large heat transfer area allows full flow through without reducing water pressure.

  • Stainless Steel exterior
  • Stainless Steel Heat Exchanger with built in 2 gallon reserve tank
  • Full flow design and dual activation (thermostat and flow) are compatible with water sense fixtures
  • Flexible NG / LP / Indoor / Outdoor / Direct Vent / Power Vent conversions in one unit
  • 3″ PVC venting up to 100ft
  • Clip-on components easily serviced by technicians
  • Patented self-cleaning utilizes turbulent flow to flush sediments out
  • Digital display screen for adjusting temperature and easy diagnostics
  • Endless hot water without water pressure drop
  • Up to 98% Efficiency saves cost, .096EF exceeds Energy Star, and qualifies for available government and/or local utility rebates
  • Ultra low emissions leaves almost no carbon footprint
  • Easy integration with recirculation and no startup lag eliminates cold water sandwich
  • Industry’s BEST 15-Year Residential / 5-Year Commercial heat exchanger no leak warranty

In a time where finding honest and well trained experts in the water heating industry is difficult, at Ace Hi Plumbing, Heating & Air, we pride ourselves in being a company you can trust. We provide excellent service, quick response and affordable prices. With such a large selection of water heaters today, choosing the right one can be time consuming. We know how valuable time can be and will make every effort to demonstrate that we are the best option for your plumbing and hot water needs. We service the Northern Colorado area including Loveland, Fort Collins, Windsor, Greeley, Evans, Johnstown, Longmont, Berthoud, Drake and Estes Park.






Grand Hall USA began decades ago to enhance everyday life with gas products that are uniquely styled, sustainably efficient, and performance oriented. The company believes in acting locally to better serve their customers. Investing in that philosophy, Grand Hall USA opened its doors in Dallas, Texas in 1985 and moved to a new 200,000 square foot facility in 2003.


Headquarters in Taipei, Taiwan since 1976 and with the US office operating out of Dallas, Texas since 1985, Grand Hall USA serves as the leading manufacturer of innovative gas appliances and components for more than 30 years.

Reflecting its corporate commitment to product development, Grand Hall USA recently introduced the patented Crossray cooking system that generates fifty percent more heat than tradition cooking systems.

Grand Hall USA’s top award-winning product, introduced in 2006, The Eternal Hybrid Water Heater has received industry accolades including EcoHome Magazine’s Editor’s Choice Award, the Top 50 Innovative Products by Professional Remodeler Magazine, and the number one Cool Products at PCBC, Pacific Coast Builders Conference.



Eternal Hybrid and Eternal Condensing Hybrid work on the Counter Flow Principle. This is an opposite approach to the way the industry has traditionally built water heating appliances. Eternal has achieved the highest efficiency in the industry without sacrificing your comfort, unlike any other water heater appliance.



Heat is generated from the bottom of the tank and rises through the centrally mounted exhaust. Cold water enters from the top and deposits sediments at the bottom.

The efficiency of heat transfer is reduced over time as the burner has to work through the build-up before heating the water.

The tank is limited in its ability to produce continuous hot water as the heat passes through a large body of water just once.

eteral blog old way


In a tankless, heat is also generated in a bottom up fashion. Cold water passes through a series of coils that reduce water pressure in order to heat water quickly. However, the coils clog up over time with scale build-up that reduces efficiency. Eventually, the coils start to corrode and the heat exchanger will fail.

Every time a water faucet is opened and closed, the heating cycle must start over again because the tankless is by flow alone. This on/off behavior causes “cold water sandwich” that impacts temperature consistency as well as delay hot water delivery to your applications.

eternal blog tankless



In Eternal’s Counter Flow design, cold water enters from the bottom up as a way of self cleaning the sedimentation, while heat is pushed through 44 radiating transfer pipes.

The Eternal Condensing Hybrid’s innovative 3 cycle process pushes heat in three directions through the water and maximizes energy transfer. in simplest terms,  our patent slows the exhaust of heat by reusing the energy multiple times, rather than reducing water pressure.

The end result is a small heat exchanger that is capable of replacing multiple tanks, while supplying endless hot water with consistent water pressure and doing it time after time.

hybrid way eternal




The Eternal is the right solution, whether it’s commercial or residential domestic hot water. Its triple pass design provides endless hot water with up to 95% efficiency, and  comes with a 15 year residential/ 5 year commercial no leak warranty.


The Eternal gu195s can support up to 4 applications simultaneously. You can run the dishwasher, shower, and do the laundry at the same time. In commercial applications, the GU195s can be combined with additional storage to support unpredictable surges in demand for hot water.


Eternal is compatible with most recirculation systems, whether it’s a dedicated return line or under-the sink retrofit pump. The built-in reserve tank within the heat exchanger makes instant hot water possible. Optional feature. Consult your authorized Eternal dealer.

Fort Collins Air Conditioning

People think Colorado is only snow covered mountain tops and harsh cold weather with floods.  It does get hot here in Colorado and making sure you have the right air conditioning system for your home or business is important as your heating system.  As Xcel Energy says, “a good contractor will do a load calculation before installing a new system.”  This sizing of the system is important for air flow and making your house comfortable throughout the summer.  Ace Hi Plumbing,Heating and Air is here to help with questions about heating and air conditioning. We service Fort Collins and the surrounding areas of Northern Colorado .



Regular maintenance on your air conditioning system is extremely important. Having regular maintenance can help your system to maintain up to 95% of their efficiency, but for every year that your system does not receive maintenance, it can lose 5% efficiency. The evaporator coil and condensing coil are two elements that can have particularly negative effects on your system and your comfort if they become dirty or blocked.

The evaporator coil cools and dehumidifies the air as it flows across it while circulating into your home while the condensing coil cools down hot gas refrigerant, condensing it back into a liquid. These coils are key system components that cool the air in order to keep your air conditioning system running smoothly.

The most common culprit for clogging coils is dust. Your system can naturally become dirty when particles and debris accumulate, especially when sticking to surfaces that are kept damp by condensate. Particles such as soot, pollen and mold can also collect. Installing an air filter helps, but there is no way of preventing the coils from becoming dirty over time. The closely spaced cooling fins also create small spaces where dirt can build up.

Dirty or blocked coils can lead to the following:

  • Decreased performance and lifespan of equipment
  • Increased utility bills
  • Reduced comfort levels inside the home
  • Imbalanced refrigerant levels
  • Blocked airflow through the system

Severely blocked coils can lead to the following:

  • Decreased cooling capacity
  • An overheated compressor which can degrade lubricants and decrease the lifespan of the compressor motor
  • Damaged compressor
  • Ice on the evaporator coil
  • In some cases, a gray layer of dust, dirt or ice can become so think on the AC coils that the airflow through the system is almost entirely blocked

If you have questions or would like to have the coils cleaned on your system, call Ace Hi Plumbing, Heating & Air at 970-667-0300. Cleaning of the evaporator and condensing coils can run anywhere between $300 to $600 depending on the size of your system.


The following signs can indicate a freeze-up or other problems with your air conditioning system:

  • Sudden decrease in performance
  • Reduced airflow from the system’s vents
  • Unusually large amount of condensate drainage
  • Continuously draining system
  • Uncomfortably warm indoor temperature

If you notice any of these problems, we recommend that you turn your AC off immediately and call a professional HVAC company to investigate. Sometimes these symptoms can be subtle, but because the consequences can become severe, it is important to stay alert to the signals your system may be sending. Running a frozen air conditioner without correcting the problem can potentially lead to irreversible damage to the system’s compressor.

Here are some signs that you can check for to help confirm that the indoor evaporator coil is frozen:

  • Ice buildup on the outdoor refrigerant line
  • Ice buildup on the evaporator coil inside the air handler
  • Condensation forming on the surface of the indoor air handler
  • Condensation forming on the surface of the condensate drain
  • Unusually large amount of condensate drainage

Causes of a frozen evaporator coil:

Reduced Air Flow

  • Dirty air filter
  • Return air ducts too small
  • Blocked air ducts
  • Closed or blocked registers
  • Malfunctioning fan

Other Potential Problems

  • Dirty or blocked evaporator coil
  • Blocked drain pipe
  • Refrigerant leak
  • Low outdoor air temperature
  • Too-low nighttime thermostat setting

If you, yourself, have verified that the evaporator coil is frozen, you should leave your air conditioning system off until the coil thaws which generally takes several hours. Without using the air conditioning, turning on the fan can help to speed up the process.

After your system has thawed completely, your wisest move would be to call and HVAC specialist in inspect your system because some causes of a frozen coil can be more serious or technical than others. Also, a refrigerant leak is a serious issue that must be handled by a professional HVAC technician who is certified in the safe handling of AC refrigerant. Ace Hi Plumbing, Heating & Air has NATE-Trained technicians with experience who can diagnose and correct problems your AC system may be having.

ac schematic of system

Air Conditioning Service – Northern Colorado!

The heat is on! Time to service the air conditioner in your home. Look to us to help you find the right system that works for you. Get maximum performance from the system you have or invest in new technology.

Call Ace Hi Plumbing, Heating & Air Today!!



Ace Hi Plumbing, Heating & Air has a service call charge of $89.00 after 7:00PM Monday through Friday and all day Saturday and Sunday.

Regular labor rates on Saturdays from 8:00AM to 5:00PM. After 5:00PM on Saturday through Sunday, Ace Hi Plumbing overtime charges will be applied.

Have you had your air conditioner checked for the summer? We have NATE-Trained technicians and we offer top quality service at an affordable price. Our AC Inspections are $89.00. This is a 20-Point Inspection that includes a minor cleaning of your unit.

If you are interested in having your air conditioner inspected, repaired or would like to have a new system installed, we offer services in the Northern Colorado area including Fort Collins, Loveland, Berthoud, Longmont, Johnstown, Greeley & Estes Park. Call Ace Hi Plumbing, Heating & Air today at 970-667-0300.