What is a Whole House Fan? How does it work?….. Better yet, How does it compare?

What are Whole House Fans?

A whole house fan is a ventilation cooling system that uses less energy than a traditional air conditioner. This energy-efficient system works by pulling cool, outdoor air into your home and out your attic vents. This helps keep the mass in your home cooler than an air conditioner can. These whisper-quiet and energy-efficient wonders are the #1 residential cooling & ventilation appliance on the market. With a whole house fan, you’re able to turn off your most expensive appliance, air conditioning, while improving the air quality and comfort of your home for just pennies per hour. A whole house fan system is installed in the ceiling between the attic and living space.

Whole House Fan vs Attic Fan

Whole house fans and attic fans are often confused. However, they are not the same thing.

A whole house fan is used for cooling both the home and attic. You typically run a whole house fan during the evening through into the early morning – basically any time it is cooler outside. This cools, ventilates, and exhausts all the hot, stale air in your home and attic. You would never run your whole house fan during the middle of the day when it is the warmest. This is where an attic fan comes in.


Attic fans ventilate and exhaust your attic only. You use them primarily during the day but they work well in the evening and night as well. They pull air from the outside through existing vents in your attic. This allows your attic to stay within 10ºF of the outside temperature at all times when the fan is running. Without an attic fan, your attic can get up to 150ºF during the summer, which can ruin the integrity of your home and cause high electric bills.

The best system combines an attic fan and a whole house fan to cool, ventilate, and exhaust the entire home, day and night, and year-round.

Attic Fans – Attic fans ventilate only the attic to reduce heat buildup and humidity, they operate year-round. Even during the winter months, homeowners can use an attic fan. In the winter, moisture and mold can build up due to the air in the home being very warm versus the air in the attic being very cold. The snow on the roof then becomes ice and holds the excess water. This is called ice damming and it is what creates mold, mildew, and premature roof rotting. With an attic fan, the constant flow of air in the attic lowers the overall humidity level and helps keep the attic healthy.

The best system combines an attic fan and a whole house fan to cool, ventilate, and exhaust the entire home, day and night, and year-round.

Whole House Fans – ventilate the whole house, including the attic and living space by bringing cool air from outside into the house to cool it and force the hot air out through the attic vents.

The whole house fan pulls air in from open windows and exhausts it through the attic and roof. It provides good attic ventilation in addition to whole house cooling. Whole house fans should provide houses with 3 to 6 air changes per hour (varies with climate, floor plan, etc.—check with our experts to determine what is appropriate for your home).

Whole House Fan vs Central Air and Window Units

Whole House Fans should never be used simultaneously with air conditioning of any kind – central air or window units. These systems can both reside in the same home and be used to complement one another.

Central Air Conditioning – cools the air with a chemical (like Freon) and circulates it within the house but does not pull in fresh air from the outside

Window AC Units – pull outside air and cools it with a chemical (like Freon)

Whole House Fans – Pull cool outside air into the house to cool it, then push the hot air in the house out through the attic


When to run your whole house fan:

When to use a Whole House Fan and how is a crucial aspect of receiving as many benefits as possible from these fans. The first important step is to ensure that the outdoor air is a temperature you would like in your own home. If it is, simply open 3-4 windows 2-3 inches wide and turn on your whole house fan. This process will flush in the outdoor air and flush out your stale, indoor air. You will have complete air exchange within 3-4 minutes!


Whole House Fan vs Ceiling Fans

Ceiling Fans – just move air around; they don’t pull in fresh or cooler air

Whole House Fans – Can improve the indoor air quality by filtering in fresh air and filtering out polluted air

Whole house fans combined with ceiling fans and other circulating fans provide acceptable summer comfort for many families, even in hot weather.


Call us today to schedule an appointment for a Quiet Cool Whole House Fan. We serve Fort Collins, Loveland, Greeley, Longmont, Boulder, Windsor, Wellington, and the surrounding areas. Schedule an appointment with an expert you can trust. 970-399-9940



What Are Ice Dams and Why Are They Formed?

The attic is a part of the house that is typically underappreciated and is often just an awkward space for storing junk. Surprisingly for most homeowners, the attic plays a big role in controlling the entire house temperature, acting as a ventilation system where the excess heat within the house rises into the attic. An insulated attic is the beginning step to decrease heat and energy loss. Having an uninsulated attic can lead to several problems, including the formation of an ice dam.


Ice Dam Buildup

An ice dam is a buildup of ice at the base of the roof along the gutter, caused by melted snow that refreezes. A pool of water from melted snow develops and the longer this pool of water sits, the more time the water can find cracks in your roof. The major reason behind the ice dam occurring is a combination of poor attic ventilation and the snow acting as an insulator.


Attic & Snow Duo

Uninsulated attics in the winter can be problematic, especially during heavy snowstorms. After a heavy snowstorm, the bottom layer of snow begins to melt due to the roof’s heat. When the underside of the roof in the attic is higher than 32 degrees, the snow melts, running down the roof. If your gutters are not given proper care, the water then builds up, causing water to sit and eventually form to ice. After another big snowstorm, the process repeats itself, leaving more water to sit behind the ice build up. When there is little time between snowstorms, the snow becomes a powerful insulator, making the outside of the roof’s surface warmer and melting the snow faster.



Ice Dam-age

Ice Dams can be extremely problematic for homeowners, and the damage is not always noticed right away. The sitting water on the roof seeps into the cracks of the roof, getting into your attic and walls. The most common ice dam effects are ceiling cavities and peeling or blistered wall paint. There is also the chance of mold and mildew formation. The attic insulation can be affected as well, which creates recurring problems for the interior and exterior of the house.

Ice Dam Prevention

Ideally, you want to avoid ice dams from ever forming in the first place. To do this, you will need to tackle the problem at its source – your attic and your roof.

You want to create a situation where the roof always remains close to the outside temperature, requiring removing heat sources within the attic and creating sufficient ventilation through the attic and roof.

Insulation- Ventilation – Air Leakage


Keeping Your Gutters, Clean Helps Stop Ice Damming

Keeping gutters clean is something that every homeowner needs to stay on top of. Although cleaning out the gutters can be unpleasant, especially if many leaves have been allowed to accumulate and rot, cleaning is still necessary to prevent roof problems.

Ice dams will have a harder time forming if the water is allowed to flow off of the house and down the gutter as intended. Cleaning out the gutters has the added benefit of preventing damaged gutters when a freeze comes, as accumulated debris that is wet will freeze. The debris can become thick enough to rip off the gutters.

If you are selling a home in the winter, it becomes even more paramount to keep up with your gutters’ maintenance. Ice dams can be a serious problem, so make sure you are prepared for the winter season with an insulated attic.

Give us a call at Lion Home Service and we are happy to do a Free Roof & Gutter Assessment , show you Leaf Relief options, or do a roof/gutter repair for you, we can also help with blown insulation! . We work with all insurance companies on your behalf and also offer $0 Down – 0% Financing. We serve Fort Collins, Loveland, Greeley, Longmont, Boulder, Windsor, Wellington and the surrounding areas. Contact us today 970-399-9940 to schedule an appointment with the best roofing company in Northern Colorado!



New and Improved Total Care Club Membership



Over the years, Lion Home Service has added services in an attempt to make our clients’ lives easier. We know that everyone is busy and our goal has always been to offer full home services, so that you only have to make one call to a company you trust.



We are now offering Roofing, Gutter, Indoor Air Quality, Safety and Septic annual assessments in addition to all the other assessments we have always offered our membership!

Heating, Cooling, Electrical, Plumbing, Drains, Indoor Air Quality, Safety, Roofing, Gutters, and Septic

Total Care Club Memberships will cover preventative maintenance assessments for Heating, Cooling, Electrical, Plumbing, Drains, Indoor Air Quality, Safety, Roofing, Gutters, and Septic services.


  • Free Estimates – we will gladly assess any repair needs within your plan and provide estimates at no additional charge to you for the duration of your club membership
  • Guaranteed Response Time
  • Priority Scheduling – Whether you’re calling for routine maintenance or emergency service, you will receive the earliest available scheduling.
  • 15% Member Rate Discount– 15% Off of Septic Pumping and ALL Repairs!*
  • Money Saving Coupons – that never expire
  • Maintenance Assessments
  • 24/7 Great Service Discount – emergencies don’t always happen when it’s convenient, rest assured knowing Lion Home Service is there when you need us. If you require emergency service, you will never pay a premium fee after hours.
  • Fast 0% Down, 0% Interest Financing Available

All for the same low cost!

1 Year and 1 month FREE- Total 13 months $299

2 Years and 1 Year FREE- Total 3 years! $499

3 Years and 2 Years FREE- Total 5 Years! $699 BEST VALUE !!


  • Check all the burners for proper operation
  • Check thermocouple for proper operation
  • Check the flue pipe
  • Check the inducer and blower motors
  • Check and tighten all electrical connections
  • Check the safety switch and controls
  • Check the pilot assembly
  • Check temperature and pressures
  • Check thermostat for proper operation
  • Check drain lines and traps for proper function
  • Testing and labeling of emergency shut-offs
  • Check gas valve
  • Check zone valves
  • Check expansion tank
  • Check aquastat, relay and water regulator
  • Check air flow across indoor coil and blower wheels
  • Check duct work for leaks
  • Start and test operation and cycle of unit
  • Check air flow
  • Check humidifier/dehumidifier


  • Check condenser coil
  • Check evaporator coil
  • Check blower motor
  • Check refrigerant charge
  • Check and tighten all electrical connections
  • Check temperature and pressures
  • Check thermostat for proper operation
  • Check and labeling of emergency shut-offs
  • Check controls and safety devices
  • Check capacitors
  • Check condensate drain
  • Check relays and contactors for proper operation
  • Check duct work for leaks
  • Check proper amperage and voltage of A/C system
  • Start and test operation and cycle of unit
  • Check air flow
  • Check humidifier/dehumidifier

Indoor Air Quality

  • Free Annual Radon Test
  • Filter Inspection
  • Duct work inspection – video/pictures
  • Insulation Inspection


  • Main Panel Check Up
  • Check all wiring in main panel for proper sizing
  • Check breakers and fuses for proper operation
  • Check outside meter and enclosure
  • Check outside main feeders
  • Check ground fault protection for proper operation
  • Check surge protectors
  • Check attic fans for proper operation
  • Check exhaust fans for proper operation
  • Testing of circuit breakers
  • Check all accessible lights, switches, dimmers, receptacles, ceiling fans
  • Check all main service grounding and tighten as needed
  • Check any outside and inside disconnects

Plumbing & Drain Cleaning

  • Check Water Pressure
  • Field Test Drinking Water
  • Check Washing Machine Hoses
  • Check all faucets for leaks to ensure proper operation
  • Dye test toilets to check for leaks to ensure proper operation
  • Check all drains for proper flow
  • Check garbage disposals for proper operation
  • Check all emergency shutoff valves for proper operation
  • Labels all main shutoffs at locations
  • Check main water meter
  • Check all outside spigots

Safety Inspection

  • 10 -Point Fire Safety check which includes but not limited to:
  • Check Carbon Monoxide alarms
  • Check Smoke Alarms
  • Check main disconnects


  • 21-Point Roof Inspection
  • Photos taken on inside and outside of the roof with attic assessment


  • 17- Point Gutter Inspection


  • 15-Point Septic Assessment – Includes but not limited to:
    • Check tank liquid levels
    • Tank construction and structural integrity
    • Access point structural integrity
    • Inlet/Outlet Tees and baffles
    • Checking for any cracks/leaks

During the year, your Lion Service Expert will perform a plumbing, electrical, heating, air conditioning, roofing, gutter, and septic assessments. These assessments allow you to protect your home’s investments by ensuring all systems are running and performing correctly – saving you money on costly repairs!
For more information about starting your Total Care Club Membership, call 970-399-9940

*15% member discount does not apply to new roof installations or new septic installations. 15% off is applied to roofing repairs, septic pumping & repairs, Hvac installations and other inside repair services.


Gutter Cleaning When The Leaves Fall: Why It Matters

With the Autumnal Equinox just around the corner, the fall season is nearly upon us. After a long and hot summer, we’re sure that most of us here in Northern Colorado are ready for cooler, more comfortable temperatures, beautiful tree colors, and of course, pumpkin-spiced everything.

Now, you’ve probably heard that you need to make sure that your home’s gutters are clear of leaves and other debris as we eventually move closer to winter’s snowfall. The fall of the leaves can be quite beautiful, but equally as troublesome for your home’s gutter system should you choose to ignore it.

Lion Home Service is Northern Colorado’s premier home maintenance service. From electrical to HVAC, septic sewer cleaning, attic insulation, roofing, and more, we’re proud to help homeowners get the most out of their residency by keeping it in tip-top shape. Below, we’ll touch on the importance of maintaining your gutters, so keep on reading to learn more.

Why Your Gutters Need To Be Clear Of Leaves And Other Debris

Your Roof’s Fascia Needs A Break

When your gutters are filled with leaves, small rocks, animal droppings, or any other type of debris, they’ll weigh down the gutters and the supporting fascia of your roof (between the shingles and gutters). Rain will make the leaves and debris heavier, only adding more weight to the fascia and gutter system.

If left unattended all season, these supporting elements of your roof could collapse, resulting in significant damage and leaving your home with no way to drain rainwater away from it.

You’ll Want To Protect Your Home’s Foundation

Your home was built upon a solid concrete foundation — one of the first elements of construction that was laid out for a structurally sound, weatherproof home. Naturally, you’ll want to protect this essential aspect of your home at all costs, among other parts of your home.

An easy and effective way to do this is to keep your gutters clear of any and all debris (or as much as possible) so that when it rains, your gutters can effectively divert water away from your home and its core foundation. Foundation fixes and replacements often average over $10,000, so take the time to keep those gutters clean and clear!

Your Gutters Need To Direct Rainwater Down And Away From Your Home

Obviously and most generally speaking, your gutters surround your roof and make their way down the side of your home into a drainage area for one main reason: to effectively divert rainwater away from your home’s physical structure!

We touched on how gutter drainage will keep pooled-up water and debris from weighing down and causing stress on your roof’s fascia as well as keeping water from seeping into the siding and foundation. But in general, making sure that excess water is effectively diverted away from your home is a good idea. Don’t you want a worry-free living situation when it storms?

Contact Northern Colorado’s Most Trusted Roofing Company Today!

Among other ways, Lion Home Service is here to make sure that your home looks and performs at optimal levels. If you need assistance with your gutters, heating, cooling, or anything else, please get in touch with the Lion team.