Quick answer
HouseIt uses this topic to decide which input changes the recommendation. The purpose is to move from a generic search phrase to a home-specific decision without pretending an online screen can replace measurements or an on-site diagnosis.
Why age alone is not enough
Compare the diagnosed failure with the broader condition of the equipment. A large repair on an older system with repeat failures is a different decision from a first, isolated repair on equipment that still performs well.
Repair cost versus remaining life
Compare the diagnosed failure with the broader condition of the equipment. A large repair on an older system with repeat failures is a different decision from a first, isolated repair on equipment that still performs well.
Repeat failures and heating performance
HouseIt uses this topic to decide which input changes the recommendation. The purpose is to move from a generic search phrase to a home-specific decision without pretending an online screen can replace measurements or an on-site diagnosis.
When replacement becomes more rational
Compare the diagnosed failure with the broader condition of the equipment. A large repair on an older system with repeat failures is a different decision from a first, isolated repair on equipment that still performs well.
How HouseIt reaches this result
HouseIt evaluates the combination of answers rather than turning one age, thermostat label or rule of thumb into a definitive diagnosis. The result is a screening recommendation and can show where professional verification is still needed.
What this tool cannot verify remotely
Do not instruct users to open electrical compartments or handle refrigerants. HouseIt cannot inspect concealed conditions, measure combustion/electrical/refrigerant performance or replace a licensed on-site diagnosis.