Your furnace is getting old, and you can feel it. The heat is uneven, the bills keep climbing, and you are tired of paying for repairs on a unit that is on its way out. Furnace installation and replacement is the service Novus Mechanical handles across Freehold and Monmouth County, sized with a Manual J load calculation on every job instead of a guess, and every job starts with one question most contractors skip: what size furnace does your home actually need?
Most of the time, the old furnace was guessed at. A contractor matched the new one to the old one, and the old one was too big to begin with. We do it differently. We measure your home first, then we recommend. That is the whole point of a diagnostic-first company.
A furnace under about 10 years old with a small failure is usually worth repairing, not replacing, and we will tell you honestly which side of that line you are on. If your furnace quit on a cold morning, that is the first real question: is it worth saving?
Replacement makes more sense once a furnace is over about 15 years old, has a cracked heat exchanger, or needs a repair that costs a large share of a new unit. A cracked heat exchanger is the big one. It can leak combustion gases into your home, so we do not patch around it.
We run the numbers with you instead of pushing repeated repairs on a dying system. If a fix buys you a few more good years, that is what we will tell you. When you are weighing one more repair against a new unit, our furnace repair page walks through what is worth fixing and what is not.
Novus sizes every furnace with a Manual J load calculation instead of matching the old unit's nameplate, which is where most furnace jobs go wrong: a contractor reads the old furnace's nameplate, orders the same size, and bolts it in. If the old one was oversized, and a lot of them are, the new one is too.
An oversized furnace short-cycles. It blasts on, heats the air near the thermostat too fast, and shuts off before the far rooms catch up. So it kicks back on a few minutes later. That cycle wears out parts faster, heats your home unevenly, and runs up your gas bill.
We size every furnace with a Manual J load calculation, the room-by-room sizing math the heating industry treats as the standard. It accounts for your square footage, your insulation, your windows, and how tight or leaky your home is. The result is a furnace matched to your actual house in Freehold. Manual J is the ACCA-recognized method for residential load sizing, and it is why a right-sized furnace runs longer cycles, holds an even temperature, and lasts.
| AFUE rating | What it means | When it is worth it |
|---|---|---|
| 80% AFUE | 80 cents of every fuel dollar becomes heat; 20 cents is lost | Lower upfront cost, shorter venting runs |
| 90 to 95% AFUE | 90 to 95 cents of every fuel dollar becomes heat | Most Freehold replacements; a solid middle ground |
| 96%+ AFUE | Nearly all the fuel becomes heat, with condensing venting | High gas usage, or when the lower running cost pays back the higher price over time |
Our technicians hold NCI Residential HVAC System Performance Technician (#25-142-01) and NCI Residential Air Balancer (#25-143-01) certifications, plus EPA #P165BDDE28EAD0701. Those are the credentials behind the measurements, not a sticker on the truck.
Most furnace replacements take about one day, and Novus runs the same six steps on every install so nothing gets missed.
Once your new furnace is in, a yearly system check-up keeps it running clean and catches small issues before they become cold mornings. New equipment is covered by a 1-year labor warranty and the manufacturer's equipment warranty.
Yes. A new furnace is a real expense, and not everyone wants to pay it all at once, so Novus Mechanical offers financing to spread the cost out. You still get the full price up front before any work begins. Ask about current options when you book your consultation in Freehold or Monmouth County.
Novus Mechanical holds a 5.0 average across 44 Google reviews, all five stars. Those reviews come from homeowners across Freehold, Marlboro, Manalapan, and Monmouth County who wanted the job done right the first time. We have served NJ homeowners since 2016, and we are fully insured with commercial general liability and workers' compensation.
Ready to find out what size furnace your home actually needs? Schedule My Appointment and we will start with a real measurement of your home. You can also see the rest of our heating services for Freehold and Monmouth County.
We measure your home, explain what we find, and hand you one clear price. Book a consultation in Freehold or Monmouth County.
