Greenhouse Hydronic Heating

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This incentive is available for the installation of under-floor (either within concrete or in direct contact with the ground) or under-bench hydronic heating loops in agricultural greenhouses.


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• Required Documentation:
o Existing heating system configuration.
o The new hydronic heating system configuration includes the total square footage of bench area served.
o Statement confirming the decommissioning of traditional space heating in favor of hydronic floor heating, along with evidence of sequencing (backup heat).
 
• Applicability: Eligible for both the retrofit of existing HVAC systems and new construction projects.
• Baseline Efficiency: Currently using unit heaters with forced air circulation. These existing systems must be decommissioned or reconfigured to serve as backup heating solutions.
• Qualifying Efficiency Requirement:
  o Temperature sensors for the hydronic heating system are required to be placed within the growing media to accurately reflect and manage the root zone temperature.
  o While the forced air heating system can remain for secondary or supplemental heating, it cannot serve as the primary source of warmth in the greenhouse.