Got questions? We have answers.

Do you have some common HVAC questions? Toggle through our list of FAQs below to find answers to common HVAC questions that we get asked on a normal basis by customers.

Why is important for me to continue my service agreement?

Continuing your service agreement, will ensure:

*Higher Comfort
*Lower Utility Bills
*Extended Equipment Life
*Fewer Repairs
*Improved Capacity
*15% discount on repairs
*Priority Customer Status
*Inflation Protection
*24 Hour emergency service
*Never an overtime charge

Why are furnaces and air conditioners so noisy?

They are not noisy if you install new Lennox or Trane components in your system. Old units were not built with the quality materials that are used today. Lennox and Trane also installs sound insulators on the compressor as well as a weather guard top that not only reduces noise but increases the life of the unit by not letting debris get into the system.

When I am on vacation should I turn off my furnace to save energy? 


Common settings is 85 degrees in the summer if you have air conditioning and 60 in the winter if you will be gone for a couple of days. These settings will keep most plants alive and will keep pipes from freezing and bursting in the winter.

Do I run any risk by accepting the lowest bid? 


YES! If a bid comes in 5-10% lower than other companies it is because they are using inferior products, do not do a quality installation or are leaving something out of their bid. Many companies will not pay for permits or schedule the inspector to come to your house. We do all the work for you, you just need to relax and enjoy the comfort and energy efficiency of your new system.

What size system should I have installed?

The right size system is paramount in your home.  Too large and your system will short cycle and not control humidity correctly.  Too small and it will run continuously.  At Goettl’s we always execute a computerized load calculation.  Please contact us for your free analysis today.  We will be happy to configure just the right system for your needs.

What are the benefits of a programmable thermostat?

A Programmable thermostat is programmed for when you leave your house and then return home. The thermostat turns of the furnace during the hours you are not home so that energy is not used to keep the house warm while you are at work. The thermostat will then turn back on 30 minutes before you come home so your house is at the perfect temperature when you are home. These thermostats save up to 15% on your energy bills during the winter and 10% in the summer.

When to Repair you air conditioner?

This is one of the more commom HVAC questions we get.

•Old air conditioning equipment becomes expensive to repair and offers no guarantee that additional problems are not close behind.

•If you plan on moving soon, you may not get your investment price from a replacement air conditioning unit when you sell.

•A replacement that involves other trades may be cost prohibitive. In rare situations, a new air conditioning system can require significant remodeling.

•The system has been trouble free thus far and looks to be mechanically sound still.

When to Replace your air conditioner?


We get these types of common HVAC questions as well.

•If the equipment has reached 10 years old be careful not to throw good money after bad with repairs.  The average life span of an air conditioning unit is 12 to 15 years.

•If the system is older than 12 years, major improvements in efficiency could be saving you BIG money. Super efficient, modern equipment can save $1,000 or more per year.

•If you are not comfortable. Todays modern air conditioning comfort systems can virtually eliminate hot and cold areas, high and low humidity, bad air quality, high utility bills, noisy indoor and outdoor equipment, and much more.

•If your system does not have variable air flow. Variable air flow is the key to comfort. New systems keep the air moving, adding to comfort and helping save money.

•If you are concerned about break downs. When an old system fails under the intense summer heat, a replacement air conditioner can easily be a week to 10 days away

•Replace before the summer crunch hits. Do not pay higher summer prices. Many small air conditioning contractors prey on homeowners who must replace in summer when reputable companies get busy.

•If family members have allergies, asthma or other air quality health concerns. Indoor air quality can be improved throughout the whole house by 100 times with today’s high tech IAQ technology and air conditioning products.

•Replace before manufactures and utility companies rebates run out. Equipment manufacturers rebates are usually available through May. APS and SRP rebates can be discontinued at any time

How Often should I change my filters?

Check filters every two months and replace as needed.

I would like to upgrade to a new high efficiency furnace or air conditioner. Do you offer financing?

Yes we offer financing for all types of situations call us so we can customize the financing for your specific needs.

I like to keep my house very cool in the summer would a new unit help with costs?

If you have a 15 year old unit it could be as little as 6 SEER. Most people set their thermostat around 78 degrees in the summer to save costs and with a new Lennox or Trane high efficiency air conditioner you could save as much as 80% of your cooling dollars with the same temperature setting..

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