Heat Control Panel (HCP)-GP Stand-Alone Heat Control Panel PSI-Polymer Systems stand-alone heat control panels provide add-on heat control zones when you need the extra capacity. Shown: Six zone panel Back to Controls Summary Product DescriptionAuxiliary heat control supports line refits or expansions. Each heat panel includes:Solid state relaysSeparate breakers for each zoneUp to six (6) discrete temperature control zonesCustom Panels available for additional zones