Denver / Gunbarrel
Gunbarrel has 10,051 residents (give or take 911) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0833502, checked 2026-10-19), about 1,609 people per square mile.
Gunbarrel is about 26 miles from the Census center point for Denver in a straight line and covers 6.246 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
Median household income in Gunbarrel is $109,407 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0833502, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
49% of Gunbarrel homes are single-family detached, 6% are in two- to four-unit buildings and 36% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0833502, checked 2026-10-19).
37% of Gunbarrel homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0833502, checked 2026-10-19), so beside the 49% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Gunbarrel has 8 points fewer detached houses than Boulder County overall (57%) and 10 points more five-plus-unit buildings than the county's 26% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US08013, checked 2026-10-19).
Of the 4,899 occupied homes in Gunbarrel, 79% heat with natural gas, 0% with heating oil, 17% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0833502, checked 2026-10-19).
Gas heats 79% of Gunbarrel against electricity at 17%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas furnace handles the coldest nights, or a whole-home system when the house is ready for it.
Gunbarrel has about the Boulder County oil share of 0% and 8 points less electric heat than the county's 25% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US08013, checked 2026-10-19).
No electric utility is on file for Gunbarrel on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Colorado Heat Pump Tax Credit (HPTC), run by Colorado Energy Office, is a live program for Colorado addresses and lists a standard figure of $1,000 (registry row 4 verified 2026-10-15, https://energyoffice.colorado.gov/hptc, checked 2026-10-16); confirm eligibility for the Gunbarrel address before counting it. With 17% of Gunbarrel homes already on electric heat and 81% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Gunbarrel has 5,017 housing units, 1% built before 1940 and 55% before 1980, with 10% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0833502, checked 2026-10-19).
Gunbarrel has 5 points fewer pre-1940 homes than Boulder County as a whole (6%) and 16 points fewer homes built after 2000 than the county's 26% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US08013, checked 2026-10-19).
The median Gunbarrel home was built in 1979 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0833502, checked 2026-10-19) and the median home has 6 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0833502, checked 2026-10-19).
Heating design temperature: -2F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Boulder County row, 99% heating, PDF pages 14 to 16 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That -2F figure is the Boulder County cold-day number a Gunbarrel heat pump is sized against, so ask the installer to show the system's heating output at -2F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 79% of Gunbarrel on gas and 17% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Gunbarrel home has 6 rooms and was built around 1979, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.
The form on this page is the follow-up for Gunbarrel. The public number is the number the contractor quotes from.
No local contractor is named on this door for Gunbarrel yet. A request from this page goes to the first licensed shop that takes the door.