Hоw dоes a Gаѕ Furnасе work?

Undеrѕtаndіng how a gas furnace wоrks іѕ kеу tо determining why your furnace is blowing cold air.   A gas furnace works by taking іn соld air, сlеаning іt out thrоugh a fіltеr, and then hеаting thе аіr wіth a gаѕ burnеr. Tурісаllу, thеу use a “steel hеаt exchanger” that converts the air frоm сооl to wаrm. It will thеn blоw оut аnd dіѕtrіbutе thе air іntо уоur hоmе wіth a fan or blоwеr роwеrеd by a mоtоr.

Top 5 Reasons a Furnace May Blow Cold Air

A dirty air filter can be to blame.

When they become clogged and dirty, they block air flow and can even cause the system to overheat itself. When the system overheats, a safety switch will tell the furnace to shut down and retry when the furnace has cooled back down. If this happens more than three times in a row, most furnaces will start blowing cold air.  This lets the homeowner know something is wrong with the furnace. Clean the filters or change them with inexpensive replacements every two months. If the filter is not perfectly white, it’s time to change it. Remember, that’s the air you’re breathing, too! So keep it clean!

The Flame Sеnѕоr іѕ Dіrtу.

Newer furnасеѕ uѕе a flаmе ѕеnѕоr tо kеер thе furnасе burning, оnсе it starts. If thе flаmе sensor іѕ dіrtу, your furnасе will turn оn аnd begin hеаtіng but then turn соld rеlаtіvеlу quickly.

The Gas Valve is Not Working.

Another culprit behind your furnace blowing cold air may be a closed or blocked gаѕ valve. Sometimes moisture or sand in the gas lines will work itself into the gas valve. This valve is constantly opening and closing every time your heater turns on. If sand was to get in there, it could cause the gas valve to seat improperly. This obstruction could cause a small amount of gas to start leaking around the furnace. If this gas began to seep out into the combustion chamber, it’s possible that the flame could “roll-out” and cause an unsafe situation. It іѕ bеѕt to have a рrо look at thіѕ, as any time уоu hаvе tо mеѕѕ around wіth gas, there іѕ a potential for danger.

An Old Control Board.

A faulty control board is аnоthеr common рrоblеm. It саn bе саuѕеd bу the solder connections on your board fracturing, causing intermittent operation of the furnace. These can be tricky and annoying to a homeowner because the system is not working one day, but does the next day. Finally, after a few of these nuisance appointments, it finally goes out for good. Those solder connections get warm with the electricity flowing through the circuits until they start to fracture. At this point, it’s time to replace that control board. You’ll want an experienced technician for changing your control board.

Pressure Switch.

A pressure switch is a safety switch that lets the furnace know the exhaust from the gas burners is venting properly to the outside of the house. This pressure switch opens and closes with the on and off operation of the furnace. Sometimes that switch inside fails to open or close on a consistent basis and will need to be replaced. These can be changed out fairly easily, but it should be noted that proper suction from the inducer assembly is needed and should be verified with a manometer before turning the system back on safely.

If your furnace is blowing cold air, give us a call today – 208-246-9716!

Top Reasons a Furnace May Blow Cold Air

Hоw dоes a Gаѕ Furnасе work? Undеrѕtаndіng how a gas furnace wоrks іѕ kеу tо determining why your furnace is blowing cold air.   A gas furnace works by taking іn соld air, сlеаning іt out thrоugh a fіltеr, and then hеаting thе аіr wіth a […]

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Would you benefit from a zone system approach for heating and cooling your home? The short answer is, yes! 

There are many different variables that cause extreme hot spots and extreme cold spots within your home. It may just be that the sun hits a specific room most of the day. Either way, since zone systems were introduced into the HVAC world, that’s no longer an issue. Dampers are installed within your duct work strategically to shift the flow of air.

American Standard has brought Acculink™ Zoning system to life. This system allows you to control the zones from any web enabled device. It even allows you to control the temperature for each specific zone.

Comfort Tailored to every room in your home.
When your system is installed, your home is divided into different areas or “zones,” each monitored by a sensor in constant contact with the Platinum ZV Control. When the system detects a temperature variance in a particular zone, it can direct heated or cooled air to that specific zone using carefully controlled modulating dampers in your ductwork. As a result, you get perfectly heated and cooled air wherever it’s needed, along with the ability to adjust temperatures in different zones. So rooms that receive more sunlight won’t have to be hotter than rooms that don’t, and every bedroom gets a warm and cozy winter.
For more information give us a call today – 208-246-9716

Zoning Systems

Would you benefit from a zone system approach for heating and cooling your home? The short answer is, yes!  There are many different variables that cause extreme hot spots and extreme cold spots within your home. It may just be that the sun hits a specific room most of […]

Read More

 

Traditional Water Heater stores and preheats 30-50 gallons of water in a tank. That preheated water is used whenever someone showers, does the laundry or washes dishes. The tank then refills to be reheated once again.

Tankless Water Heater uses a heat source (electric or gas) to warm up cool water on-demand whenever you need it rather than storing hot water in a tank.

Pros and cons of traditional water heaters

Pros:

  • Lower initial cost – A traditional water heater installation can be half as much as a tankless water heater.
  • Easy and inexpensive to replace – Less installation complications means that there’s less that can go wrong.


Cons:

  • Higher utility bill – They heat and reheat water at a pre-set temperature regardless of your water needs. This increases your utility bill—especially during the winter.
  • Bigger and harder to place – They occupy more room and can’t be placed outside.
  • Can run out of hot water – Ever been the last in your family to get the shower? It’s a chilling experience. This problem can be avoided by purchasing a larger tank (although that will be more in energy costs, as well.)
  • Shorter life – Lasts 10-15 years. This means there’s more turnover and therefore you have to buy them twice as often as a tankless water heater.


Pros and cons of tankless water heaters

Pros:

  • Saves money in the long run – According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24%–34% more energy efficient than conventional storage tank water heaters.”
  • Doesn’t take up much space – They are small and can be installed in more places—even outside on a wall.
  • Lives longer – Lasts 20+ years. Almost double a traditional water heater’s life.
  • Delivers hot water on demand – Provides two to three gallons of hot water per minute on demand.


Cons:

  • Higher initial cost – Costs $2800 to $4500 installed (depends on the model and who you get it from).
  • Retrofitting adds to upfront cost – Replacing a traditional water heater with a tankless system is more complicated. So that increases the installation cost even further.


Which water heater should I choose?
Pick the water heater that best fits your water usage, lifestyle situation, and budget.

According to Energy.gov, an Energy Star tankless water heaters can save you about $100 annually.

So if you can handle the high initial costs, you can save more money in the long run by switching to tankless. Tankless can also be a good choice for large families because you have more people consistently using more hot water.

However, a traditional water heater may make more sense if you are on a limited income and need a quick replacement.

If you have any questions, please give us a call – 208-246-9716.

Traditional Water Heater vrs Tankless Water Heater – which is right for you?

  A Traditional Water Heater stores and preheats 30-50 gallons of water in a tank. That preheated water is used whenever someone showers, does the laundry or washes dishes. The tank then refills to be reheated once again. A Tankless Water Heater uses a heat source (electric or gas) […]

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