A hot air sealing arrangement for sealing between an inner surface of an exhaust
duct conveying hot combustion products and an outer surface of a heat exchanger
disposed within the exhaust duct includes an inner receiver attachable to the outer
surface of the heat exchanger, an outer receiver attachable to the inner surface
of the exhaust duct, and a seal having an outer bead engageable with the outer
receiver for rotary movement therein and an inner bead engageable with the inner
receiver for sliding movement therein. The seal further includes a connecting sheet
between the outer bead and the inner bead.
