Glenn Stanton

Dan C.

What should the heat anticipator be set at for a Burnham revolution boiler with cast iron baseboard one zone with honeywell t87 f thermostat be? thanks.

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TK03

0.6 according to page 54 of the I&O manual. Hope this info helps.

bob young

antic.

usually you match therm. heat ant. with rating on gas valve

Boilerpro_5

Very rarely is the gas valve rating right....

the amperage draw from the control circuit is what matters as the straring point. In the gas of most steam boilers, gravity boiler and very old equipment, this was the gas valve rating. With nearly all new equipoment this is not the case.
Also the type of system you have and if the equipment is properly sized also have an enormous impact. Assuming a properly sized heater ( boiler or furnace), forced air is set at the amp draw, for low mass hot water system...amp draw times 1.5, for high mass systems (ie converted gravity, radiant) and most steam systems amp draw times 2. This will give you about 6 CPH, 3CPH, and 1 CPH respectively. For oversized equipment or lighter weight systems , the CPH needs to increase to provide stable space temperatures. These are starting points and usually need a little tweaking for the right balance of comfort and efficiency.
The CPH (cycles per hour) changes for different types of systems also greatly effect equipment life and proper venting for chimneys. More CPH means more equipoment wear and shorter equipment life and efficiency and oftens times wet chimneys, Less CPH means longer equipment life and usually drier chimneys.

Boilerpro

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Randy_25

With all heating startups you need to check the current draw at the stat, jumper R to W and wrap your jumper twice around your amp meter, then divide what ever reading or draw you get by 2 that is your setting. This should be done on any heating system.