Gas heat to check losing heating under the house not very old s/s

Effie requested 2 quotes from Heating Professionals in Parkdale

ducted heating to be checked as is losing heating under the house not very old s/s

NCL Plumbing Solutions

Southern Star Property Maintenance

Rinnai energy saver 550f,has stopped working.
Rinnai energy saver 550f,has stopped working.

REPAIR OR REPLACEMENT OF DUCTED HEATING
REPAIR OR REPLACEMENT OF DUCTED HEATING. relist 37449........Lil

Brivis ducted heater not igniting but pilot light is on?
Brivis heater not igniting but pilot light is on. Have switched everything...

Ducted heat system is not working
Control panel is flashing "ON" for a period of time and then changes to flash...