Hot tub fires can be caused
by equipment malfuctions, loose or rusty electrical connections,
rodents chewing on wiring.
"The most inclusive and direct interpretation
of “electrical fire” is a fire involving some type of electrical
failure or malfunction. Any equipment powered by electricity can
have such a failure." -The National Fire Protection Association
A hot tub is a "high-current" appliance
which means it uses a lot of electricity. Measured as Amps,
the amount of electrical current an appliance uses determines
the size of the breaker and wiring required. More Amps means bigger
breakers and bigger wire. It also means increased chances of electrical
When electricity runs through a wire it generates
heat. You can see this effect used deliberately inside any toaster.
Hot, glowing wires inside a toaster is a good thing. Hot glowing
wires inside the walls of your house or inside your hot tub...electrical
In my experience, hot tub electrical fires can be
- Under-sized wire
- Loose or corroded connections
- Unprotected wire rubbing against metal edges
- Rodent damage (insulation chewed off wires)
- Equipment malfunction (obsolete heat exchangers)
This tub caught fire after rats damaged the insulation
on the 220 Volt input power lines. If the wiring had been protected
by conduit, this fire would have never happened.
The rats had also dug tunnels throughout the foam
insulation and hollowed out several chambers filled with dry nesting
material such as leaves and grass.
The fire started in the equipment area but quickly
followed these tunnels to every corner of the cabinet.
The fire department responded to reports of a thick,
black column of smoke. Several neighbors initially thought a small
plane had crashed. Firefighters wore pressurized masks because
burning plastic gives off a lot of toxic fumes. The fire department
saved most of the deck and the house but the tub was a total loss.
Regular inspection can
help prevent electrical fires
...can cause hot tub fires
Electrical meltdown on a heater relay
Electrical meltdown inside a breaker box
Wiring and related electrical equipment
cause 63% of household fires and 50% of fire related deaths.
Electrical faulure or malfunction
caused an estimated 47,820 residential structure fires in the
U.S. between 2007 and 2011 causing more than 450 deaths, 1500
injuries and almost $1.5 Billion in property damage.
Hot Tub Fires in the News
Glebe hot tub fire doused quickly (with video)
Damage from hot tub fire exceeds $10,000
Firefighters save Ancaster home from hot tub blaze:
Couple's home nearly destroyed after their outdoor
hot tub explodes:
Squirrels blamed for Port Hope hot tub fire:
Fire damages Brownville home. Electrical short in
hot tub to blame:
Hot tub issues lead to fire:
Hot tub to blame for early morning fire in Bridgeport:
House fire traced to hot tub: