HVAC Resources

HVAC Resources

Our team at Mission Comfort never guesses when it comes to replacing or repairing HVAC systems and neither should you. That’s why we created two easy-to-use calculators for our customers to take the guesswork out of the decision-making process:

• Load Calculator: Calculate which sized HVAC system your home needs and maximize your system’s comfort and efficiency.
• 5K Rule Calculator: Use a quick, straightforward formula to decide whether or not an HVAC repair or replacement makes the most sense for your budget.

When used together, our HVAC calculators offer the insight and methods that our skilled techs use every day. These tools will help give you more peace of mind and an idea of what to expect before calling us to come out for an assessment.

Load Calculator: Choose the Right Size HVAC for Your Home

A load calculation measures how much heating or cooling your home actually needs. It takes into account the square footage, levels of insulation, number of windows, sun exposure, and how many people live in your household.

Why Mission Comfort Performs Load Calculations

Every home is unique and so are your heating and cooling needs. A one-size-fits-all approach could lead to an oversized or undersized unit and compromise your comfort and utility bills.

Why Load Calculations Matter

Without accurate load calculations, you could end up with a system that:

• Runs constantly and drives up your energy bills
• Wears out and leads to a premature replacement
• Doesn’t cool or heat your home properly
• Turns off and on continuously and doesn’t provide the comfort you deserve

Why Do So Many Companies Skip Load Calculations?

Taking accurate load calculations and applying them to your specific circumstances takes time, training, and specialized software. Many companies skip right over this step and come up with rough estimates based on square footage alone.

The team at Mission Comfort never guesses and always performs a detailed load calculation. We also take into account your system, preferences, and feedback to make sure your system is properly sized for your long-term comfort and efficiency.

How to Use Our Load Calculator

Enter your home details → get a recommended system size → call us for a professional confirmation.

5K Rule Calculator: Should You Repair or Replace Your HVAC?

Our team recommends homeowners use the 5K Rule to make a straightforward “repair vs. replace” decision. This industry-standard formula is simple, effective, and puts your mind at ease. It’s also trusted by major brands like HomeAdvisor, Angi, and HVAC.com.

Repair Cost × System Age = Decision Number

• Under $5,000: Repairing your HVAC system probably makes the most sense but also assumes your unit is still in good shape.
• Over $5,000: Replacing your HVAC system is usually the smarter long-term investment for your budget.

Why $5,000?

The $5,000 benchmark balances:

• The average cost of major HVAC repairs
• The expected lifespan of 12 to 15 years for most heating and cooling systems
• A clear, easy-to-remember guideline that’s trusted by industry giants

How to Use Our 5K Rule Calculator

Plug in your HVAC system’s age and repair cost → see if it’s under or over $5K → schedule with us to review options and flexible financing options.