High-E Heating


Ultra-High Efficiency Heating systems have always been a part of Mile Hi Solar’s services. Despite our name, we don’t just design and install exceptional solar energy systems; we are also on the cutting edge of conventional heating technologies.



why mile hi?

Mile Hi Solar is one of just a handful of properly trained and experienced solar/heating contractors in the entire state who can integrate these various systems properly. We can even integrate PV technology into these systems to ensure you have heat even when the grid goes down. Only a few other companies in CO can truthfully claim this kind of expertise. 

  • We are pioneers in this type of Combination (Combi) system. 
  • We are a Master Mechanical and HVAC contractor with ICC, COSEIA and NABCEP certifications. 
  • We’ve designed, installed and repaired hundreds of these systems. 
  • We have installed small systems for average home sizes all the way up to commercial buildings.
  •  We’ve designed and installed the largest and most complex residential Combi systems in both Boulder and Larimer Counties (according to County Building officials).
  • Mile Hi are your Colorado High-E Heating experts, for Boulder, Denver, Greeley, Fort Collins, Estes and beyond!

What is ultra-high efficiency heating?

MODCON is short for Modulating Condensing as related to ultra-high efficiency heaters. These units have sealed combustion chambers (usually Titanium or Stainless Steel) and have the ability to “modulate” depending on the heat load. That means they only use the minimum amount of gas necessary for each zone in the system.  

Benefits of ModCon:

  • Many of our clients want the flexibility of being able to integrate their solar thermal system into their whole heating system. This is rarely possible without the use of a ModCon. When coupled together, it is the most efficient and cost effective way of heating. 

  • ModCon, when paired with proper mix valves, allows for both high-temp and low-temp sides of the heat distribution system. In short, it allows you to keep some of your baseboard heaters in certain zones while utilizing radiant heat in others. Some clients don’t have the budget to change all of their baseboard heaters to radiant panels and in-floor heat, which makes a ModCon a great choice. When you are able to use low-temp zones, it means you can extract even more solar thermal energy with a Combi system.
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Types of ModCon Systems

A ModCon Boiler (for buildings with hydronic heat) is one of the most efficient ways to heat your home or business. Utilizing the latest technology, the furnaces we offer are EnergyStar rated and have certified ratings at or above 95%. They use less gas and work well with solar thermal combo systems.

A ModCon Furnace (for buildings with forced air heat) is the most efficient ways to heat your home or business. Utilizing the latest technology, the boilers we offer are EnergyStar rated and have certified ratings around 95%. They take up less space than atmospheric (standard conventional) boilers, they use less gas and work well with solar thermal Combi systems.

A ModCon Water Heater for any building needing Domestic Hot Water (DHW) is an efficient way to heat your home or business hot water system. Utilizing the latest technology, the heaters we offer are EnergyStar rated and have certified ratings around 95%. They use less gas and work well with solar DHW systems.


                                                                 
caution!
Don’t be fooled when other so called “solar and heating experts” tell you that they can integrate a solar thermal system into your atmospheric boiler, furnace and/or tankless water heater. It doesn’t work! At least not well enough to significantly reduce your heating bills.

Why Not?
The vast majority of atmospheric boilers, furnaces and tankless heaters don’t have inlet sensors or operate on a pressure switch. 
This means that you can dump all the solar heat in the world into your boiler, but your boiler won't know it -it will still fire at its normal rate. In some circumstances, it will even make your boiler short-cycle and/or hit high limit and shut down. 
A ModCon (when integrated correctly) has the proper computer and sensors to adjust its output according to how much solar input it’s getting. 

Let the Mile Hi Solar experts install a ModCon and watch your utility bills drop.


 
 


Certification #
031508-89