A carpenter works to frame out a new house.
An HVAC installer looks through a hole he just drilled that will carry coolant lines and power.
A technician performs a pressure check on an industrial pump at the Midtown Exchange building in Minneapolis.
Technicians at the Greencore snack food plant south of Minneapolis review production data.
A Homes for Our Troops volunteer Build Brigade works on windows at a home under construction for a wounded Iraq war vet.
Plumber Eric Aune finishes installing the Taco pumps and valves for a residential in-floor radiant heat system.
Solar panels atop the roof of a highway maintenance building outside Chicago reduce the facility's annual electricity bill by $20,000.
An HVAC technician installs a ceiling-mounted Fujitsu mini split unit for a residential project.
US Bank Stadium in Minneapolis has its exterior panels replaced.
Technicians smile after installing three high efficiency Laars boilers for a commercial application.
A volunteer member of a Homes for Our Troops 'Build Brigade' helps frame out a new home for a wounded veteran.
Two ironworkers work on an addition to the Tribune Tower in downtown Chicago.
An HVAC technician finishes installing a Fujitsu mini split unit for a residential application in northern Wisconsin.
Marcus Kuboy, an Army Seargeant seriously wounded in Iraq, shares a laugh with his father on the site of the adapted home being built for him by the Homes for Our Troops organization.
A technician programs a Laars Magnatherm commercial boiler in a newly constructed high school.
A technician installs a Fujitsu Airstage compressor unit on the roof of a men's shelter in St Paul, MN.
Technicians perform maintenance checks in the mechanical spaces of the Midtown Exchange building in Minneapolis.
HVAC contractors look over plans for heating and cooling a new residential proprety in northern Wisconsin.
A contractor uses a masonry drill in preparation for installing the compressor unit for a Fujitsu mini split system.
A contractor and homeowner go over the manual for a newly installed Fujitsu Halcyon system.
Plumbing contractors work to remove old pipes from the mechancial room of a private college in Minnesota.
A technician delivers a Laars Mascot boiler/water heater for a multi-unit housing application.
Technicians run diagnostics on a recently installed Laars Magnatherm commercial boiler.
A bakery technician wheels a cart of freshly baked dough-wrapped hot dogs to a cooling area.
A plumber installs pipe for a new Laars high efficiency NeoTherm boiler in an educational setting.
A locksmith works to install a Salto electronic lock in a multi-unit residential building.
Plumbers install an additional evaporator unit for a residential Fujitsu mini split system.
A Minnesota state inspector verifies proper performance of a newly installed commercial boiler in a public high school.
Contractors look over the product literature for the Fujitsu Halcyon mini split system installed behind them.
Employees of Hawk-I Plumbing in Storm Lake, Iowa load a Fujitsu Halcyon unit into their truck.
A contractor drills holes preparing to hang a Laars Mascot FT unit on the wall in the mechanical room of a multi-unit residential site.
A construction worker directs a beam lift at a residential build project.
A nighttime glimpse inside the Kohler factory in Kohler, WI.