Azel SP-82 Two Zone Switching Relay for Hydronic Radiant Floor Heating Systems

Price on Amazon

$142.00

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Price as of Oct 16, 2026, 7:48 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.

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From the listing

Key features

Isolated End Switch and Priority End Switch for utilizing full functionality of high efficiency Mod-Con boilers

LED indicators on the front panel provides functional status and easy troubleshooting

EZ screwless terminal blocks for connections to the thermostats

Field selectable priority with timer prevents freeze-ups in the event of a priority zone failure

A system circulator is turned on whenever any zone calls for heat

Fuse protection

Safety design with all electronic components hiding behind the enclosure

Cold Start or Tankless Coil Boiler

High Capacity Field Replaceable Transformer

Extended 3 year warranty

Ready when you are

Azel SP-82 Two Zone Switching Relay for Hydronic Radiant Floor Heating Systems

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$142.00 on Amazon