Interior heat exchangers

[Michael Peters]

I noticed on a recent thread about the interior bus heaters, a complaint of insufficent heat output. Well I've recently been servicing my system as we are wintering in Va. on a site with electric metering. I have found dust blocking all the radiators. I removed all the accessible screws holding the tops on, lifting up and cleaning with combination of air pressure and vaccum cleaner. They work much better now

[Michael Peters]

Well,as typical as you do a job you learn something and have to go back. After cleaning the radiator fins I got to thinking I could smell coolant, so started over today. Yes they were all loose, also while I was in there today I used foil tape to seal the transition from the radiator to discharge grille.Now all that heat goes into the room,another little improvement