[marine86297]

I am a mechanical contractor and we work on boilers. There is more to flushing a Hydronic heating system then just opening a valve and letting water flow through.

The landlord should hire a reputable company to come in and perform this for you. A good service company can go through the boiler and perform a seasonal inspection for you. By just uncapping and letting water flow, you may actually introduce air into the system and then you have another set of issues.

[mark3681]

Couldn’t I take care of the air issue by opening the bleeder valve on each radiator?