|  | | Halstead VBX18 Condensing Boiler for open vented systems - 18kW - Nat. Gas |
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| |  | | Halstead VBX18 Condensing Boiler for open vented systems - 18kW - LP Gas |
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|  | | Halstead VBX30 Condensing Boiler for open vented systems - 30kW - Nat. Gas |
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| |  | | Halstead VBX30 Condensing Boiler for open vented systems - 30kW - LP Gas |
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