What Should New Homeowners Know About the HVAC System They Inherited?

NEW HOMEOWNERS • HVAC BASICS • MINNESOTA HOME COMFORT

Congratulations on the house.

You now own:

Walls

A roof

Probably more lawn than you remember agreeing to

An HVAC system somebody else has been using for years

The furnace and AC do not come with a Carfax.

SO WHERE DO YOU START? Learn what you own, establish a baseline and pay attention to how the house behaves through the seasons.

Find Out What You Actually Own

Locate the major equipment.

Depending on the home, you may have:

Furnace

Central AC

Heat pump

Boiler

Mini-splits

Humidifier

Air cleaner

HRV / ERV

Other indoor-air-quality equipment

You do not need to become an HVAC technician. You should know what systems exist.

Find the Model and Serial Numbers

Most HVAC equipment has a data plate containing model and serial information.

These can help identify:

Equipment specifications

Approximate age

Replacement parts

Warranty information

EASY HOMEOWNER WIN Take photos of the data plates and save them somewhere you will actually remember.

Future-you will appreciate it.

Ask for Maintenance Records

If the previous homeowner left service records, keep them.

They can reveal:

Past repairs

Maintenance history

Recurring issues

Equipment replacements

No records?

Not the end of the world. It simply means you are establishing a new baseline.

Find the Filter Before You Need It

This sounds ridiculously basic until six months later when someone asks:

“When did we last change the furnace filter?”

and everyone looks at each other.

01 Locate the filter.

02 Know its size.

03 Understand how it installs.

04 Establish a reasonable inspection and replacement routine.

Do not assume the most restrictive filter you can buy is automatically the best choice. Airflow still matters.

Test Heating Before Winter

Do not wait for the first 15-degree morning to discover that the furnace does not start.

BEFORE WINTER Test the heating system.

Make sure it starts and operates normally before cold weather becomes urgent.

BEFORE SUMMER Test the cooling system.

Do not wait for the first major heat wave to discover the AC has a problem.

Learn Where the Shutoffs Are

Know how to turn off HVAC equipment at the thermostat.

Know which electrical breakers serve the equipment.

If you have gas appliances, understand where the appropriate gas shutoff is located—but do not manipulate equipment or gas controls unless you know what you are doing.

THE GOAL Basic homeowner awareness.

Not taking apart equipment because you watched a three-minute video online.

Ask How Old the Equipment Is

Age is useful context.

It is not a countdown clock.

15-YEAR-OLD FURNACE Not automatically dead tomorrow.

5-YEAR-OLD AC Not automatically problem-free.

But knowing age helps you plan.

PLANNING BEATS PANIC If major equipment is older, start creating a future replacement budget before replacement becomes an emergency.

Pay Attention to What the House Feels Like

Your first year in a home teaches you a lot.

Notice:

Which rooms are cold?

Which rooms are hot?

Does the upstairs struggle?

Does the basement feel humid?

Does the furnace run loudly?

Does the AC maintain temperature?

Are there drafts?

Does one bedroom have weak airflow?

Write things down. Seasonal patterns are useful when diagnosing comfort later.

Don't Assume the Previous Owner's Thermostat Settings Were Correct

Set the house based on your household.

But avoid making massive changes constantly.

A BETTER APPROACH Pick a comfortable setting, give the HVAC system time to operate and learn how the house responds.

Consider a Maintenance Baseline

If you do not know when the HVAC equipment was last inspected, having it checked can give you a clearer starting point.

The objective should be understanding:

1. 01 What you own
2. 02 What condition it is in
3. 03 What maintenance it needs
4. 04 What problems deserve planning

Not manufacturing repairs simply because you are the new homeowner.

Get the HVAC Company's Number in Your Phone Before You Need It

This may be the least glamorous homeowner tip on the internet.

It is also useful.

When the furnace stops at midnight, you do not want your first HVAC research project happening while the house temperature drops.

SAVE THIS CONTACT Air Comfort Heating & Air Conditioning 763-753-6623

Hopefully you will not need us tonight.

NEW HOUSE? UNKNOWN HVAC HISTORY?

Start With a Baseline Instead of Guessing

Air Comfort provides heating, cooling, heat-pump, boiler, indoor-air-quality, maintenance and emergency service throughout Anoka and surrounding Minnesota communities.

If you recently bought a home and do not know much about the HVAC equipment yet, we can help you understand what you have, what condition it is in and what deserves attention now versus later.

CALL 763-753-6623 REQUEST SERVICE

FREQUENTLY ASKED QUESTIONS

New Homeowner HVAC Questions

Should I replace HVAC equipment when I buy a home?

Not simply because you just purchased the house. Determine the equipment's condition, age and performance first.

How do I know how old my furnace or AC is?

Model and serial information can often be used to determine manufacturing information. An HVAC professional can help identify it.

Should I schedule HVAC maintenance if I have no service history?

Establishing a baseline inspection can be useful when the previous maintenance history is unknown.