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Boost Services Heating and CoolingBlog

Notes from the field

Plain answers on air conditioning, heating, heat pumps, mini splits, ducts and thermostats.

Page 8 of 10

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A grey Craftsman bungalow
Heating

Is a Floor Furnace Safe to Keep? Three Conditions

A grille hot enough to burn, a sound heat exchanger, and a vent that draws. What a service visit covers, and when a mini split replaces it instead.

A row of gas burner flames inside a heater
Heating

Furnace Safety Inspection: The Nine Checks It Covers

Gas connections, burners, heat exchanger, combustion readings, venting, safeties. If a tech says the exchanger is cracked, ask for the photo.

Control board relays and wiring inside an HVAC unit
Heating

Furnace Short Cycling? Start With the Dirty Filter

Restricted airflow overheats the exchanger and the limit switch cuts the burners. Then the flame sensor, the pressure switch, and a furnace a size too big.

A home framed by cypress trees
Heating

Furnace Smells Burning the First Time On? Give It an Hour

Dust cooking off the heat exchanger fades within an hour of run time. Musty points at the coil or the ducts. Plastic or gas means stop, and here is how.

A new heat pump air handler Boost installed in a closet
Heat pumps

Replacing a Gas Furnace With a Heat Pump: What Changes

The gas line gets capped, the flue goes unused, an air handler takes the furnace spot. Register air is warm rather than hot, and the ducts decide the rest.

A ductless outdoor unit installed below a row of windows
Heat pumps

Heat Pump Maintenance: Why It Needs Two Visits a Year

The reversing valve, the defrost cycle and the backup strips only get checked in fall. What you do monthly, and what a tech does each spring and fall.

An outdoor heat pump unit on a ledge against a brick wall
Heat pumps

Heat Pump Noises: The Whoosh Is the Reversing Valve

Hum, click and gurgle are normal too. Four sounds mean shut it off: grinding, banging, a hiss that never stops, and any burning smell.

An outdoor heating and cooling unit in the rain beside a garden
Heat pumps

Do Heat Pumps Work in a Heat Wave? It Is Just an AC

Same compressor and coils, rated at 95 degrees like any air conditioner. In January the air comes out warm rather than hot, so keep setbacks small.

Technicians at a rooftop package unit
Replacement decisions

How Long Does an AC Last? 12 to 17 Years, Less Here

That range is a rough one, and the compressor decides it. A six-month cooling season over a 130-degree attic works against it. What adds years back.

A two-fan ductless outdoor unit mounted on a wall bracket
Mini splits

Multi-Zone Mini Splits: Every Head Runs in One Mode

One compressor divides refrigerant between the heads, so no room heats while another cools. Oversized heads and poor placement cause most complaints.

New condenser installed on a patio
Homeowner basics

How Old Is My AC? The Data Plate Has Three Answers

Age from the serial number, tonnage from the multiple of six in the model, and the refrigerant. R-22 on that plate turns any leak into a replacement talk.

A dirty filter pulled during a maintenance visit
Ducts & air quality

MERV 8 or MERV 13? What Your Blower Can Actually Pull

A 1-inch MERV 13 can starve an older system with one small return. A 4-inch media cabinet gets you there at roughly the resistance of a MERV 8.

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Licensed #1119892 · Veteran-owned · Pasadena & Reseda

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