Purified Air Heating and Air Conditioning
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Heating Installation in Monrovia, CA

Replacing a floor furnace or wall heater with a modern system is one of the bigger comfort improvements available to an older Monrovia home. It is also one of the more involved.

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Purified Air technicians servicing an outdoor AC unit

Modernizing Heating in an Older Home

A significant number of Monrovia homes are still heated by equipment that was current when the house was built. Floor furnaces and wall heaters warm the room they occupy and very little else, which is why homes with them tend to have one comfortable space and several cold ones. They are also markedly less efficient than anything manufactured today.

Moving to a modern system is rarely a straight swap in a period home, because the ductwork usually does not exist. That is a solvable problem, but it needs planning rather than assumption. We assess what is realistically achievable in your building before quoting, and we are direct about which approaches will and will not work in a house with plaster walls and limited chases.

When Replacement Makes Sense

The case for replacing rather than repairing is usually clear:

  • Equipment Past Twenty Years: Older heating equipment is both less reliable and substantially less efficient.
  • Cracked Heat Exchanger: A safety fault that generally condemns the unit outright.
  • Rooms That Never Warm: A single-room heater cannot condition a whole house, and no repair changes that.
  • Standing Pilot Systems: Continuously burning pilots waste gas year-round.
  • Rising Repair Costs: Two significant repairs in consecutive seasons usually signals the end of economical service.
Technician testing a Lennox air conditioner

Options for Homes Without Ductwork

Where running full ductwork is impractical, there are workable alternatives:

  • Ductless Heat Pumps: Zoned heating and cooling with no ductwork, minimal disruption to original finishes.
  • High-Velocity Systems: Small-diameter ducting that can be routed through existing wall cavities.
  • Partial Ducted Systems: Ducting the parts of the house where it is feasible and handling the rest separately.
  • Modern Wall Furnace Replacement: Where a full system is out of scope, current sealed-combustion units are far safer and more efficient.
  • Phased Installation: Some homeowners prefer to address the house in stages across separate budgets.

What the Installation Involves

Heating installations in older homes follow a defined sequence:

  1. Free In-Home Assessment

    We evaluate the building and its constraints and provide written options.

  2. Heat Loss Calculation

    Capacity is sized from your home's construction rather than the outgoing equipment.

  3. Permits and Inspection

    Required permits are pulled and inspection coordinated, which matters on combustion equipment.

  4. Careful Installation

    Gas, electrical and venting to current code, with original finishes protected throughout.

  5. Commissioning

    Combustion tested, airflow verified, warranty registered and operation explained before we finish.

Request a Free Heating Estimate in Monrovia

If your home is still running on original heating equipment, it is worth understanding what the realistic options are before it fails outright. Purified Air offers free written estimates and financing for Monrovia homeowners. Call to arrange a consultation.

626-621-2220

Testimonials

Our Customers Love Our Services

Jhoanna Lara

Purified Air Heating and Air Conditioning did a fantastic job fixing my AC when it wasn’t cooling properly. The technician quickly identified the problem and resolved it efficiently. Great service

Addison

I had a great experience with them. Roman was prompt, honest, and offered fair pricing. They were easy to get in touch with and had my issue resolved day of.

Jose Medrano

During the rain I needed my heater to work. Purified Air came checked and made sure my air was like new running like new. They are reliable, easy to work

Kandice Banville

I recently hired Purified Air Inc. to service my heating and air system, and they exceeded all my expectations! From the moment I contacted them, their team was professional, courteous,

Jose Porras

Purified Air Heating and AC has been amazing with our routine maintenance. They’re always on time, professional, and leave everything running smoothly. I feel confident knowing my system is in

Anthony Moreno

Purified Air installed a new AC unit in my home, and I am extremely impressed with their service. The team was punctual, professional, and very knowledgeable. They completed the installation

Tara Avery

Had a really great experience with Roman (owner). Initially my unit’s issue was misdiagnosed by a tech, which lead to needing a callback. Roman reached out to me personally via

Jocelyn Villanueva

I greatly appreciate the excellent service I received from Purified Air Heating and Air Conditioning. They installed a new HVAC system in my home, and the technicians were very respectful

esme diaz

Purified Air Heating and Air Conditioning installed a new HVAC system in my home, and I couldn’t be happier with the results. They provided a range of financing options that

gabriela gamboa

I called Purified Air Heating and Air Conditioning during a heat wave when my AC stopped working. They were amazing! The technician was friendly, knowledgeable, and fixed the problem quickly.

Jaime Del toro

Very good yob experts. Purified Air did a great job installing our new AC. The team was friendly and worked fast. They made sure everything was working before they left. The

Dulce Ramirez

Purified Air installed a new air conditioning and heating system in my home. The team was professional and knowledgeable, helping me choose the best system. The installation was seamless, and

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