This opportunity requires the supply and installation of a complete replacement heat pump system at the Mount St Helens National Volcanic Monument Ranger District Office in Amboy, WA. The contractor must remove and dispose of the failed existing HVAC system off Forest Service property and provide all labor, materials, and electrical connections using a licensed electrician. The new system must operate efficiently in sustained winter temperatures below 25°F, and emergency or electric strip heating cannot be the sole source for that performance. The proposal must clearly state the equipment type, size, model number, and low-temperature rating, and it must include a full equipment brochure or the offer will not be evaluated. This is a total small business set-aside firm-fixed-price contract under NAICS 238220 with a $19.0 million small business size standard.