Hempstead / Roslyn
Roslyn has 2,978 residents (give or take 15) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3663770, checked 2026-10-19), about 4,617 people per square mile.
Roslyn is about 7 miles from the Census center point for Hempstead in a straight line and covers 0.645 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 Roslyn is $116,386 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US3663770, 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.
4,617 people per square mile puts Roslyn in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
44% of Roslyn homes are single-family detached, 13% are in two- to four-unit buildings and 40% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3663770, checked 2026-10-19).
With 40% of Roslyn homes in buildings of five or more units and 44% detached, the condo association usually decides where outdoor units can go, so that approval comes before the quote. With 37% of Roslyn homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3663770, checked 2026-10-19), the landlord signs the quote in many of them.
Roslyn has 32 points fewer detached houses than Nassau County overall (76%) and 27 points more five-plus-unit buildings than the county's 13% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US36059, checked 2026-10-19).
Of the 1,395 occupied homes in Roslyn, 71% heat with natural gas, 13% with heating oil, 8% with electricity and 8% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3663770, checked 2026-10-19).
Gas leads in Roslyn at 71%, but 21% of homes still burn delivered oil or propane, and those 293 or so homes are where a heat pump pays back fastest.
Roslyn has 13 points less oil heat than Nassau County as a whole, where 26% of homes burn oil, and 1 points more electric heat than the county's 7% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US36059, checked 2026-10-19).
No electric utility is on file for Roslyn on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
NYS Clean Heat (Con Edison), run by Con Edison, is a live program for New York addresses and lists a standard figure of $7,000 (registry row 5 verified 2026-10-16, https://www.coned.com/en/save-money/rebates-incentives-tax-credits/rebates-incentives-tax-credits-for-residential-customers/electric-heating-and-cooling-technology-for-renters-homeowners/save-on-a-central-air-source-heat-pump, checked 2026-10-16); confirm eligibility for the Roslyn address before counting it. With 8% of Roslyn homes already on electric heat and 92% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Roslyn has 1,423 housing units, 18% built before 1940 and 83% before 1980, with 8% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3663770, checked 2026-10-19).
Roslyn tracks Nassau County on housing age, with the county at 19% pre-1940 and 7% post-2000 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US36059, checked 2026-10-19).
The median Roslyn home was built in 1955 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3663770, checked 2026-10-19) and the median home has 4.5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US3663770, checked 2026-10-19).
83% of Roslyn homes were built before 1980 and only 8% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3663770, checked 2026-10-19), so most of the stock predates modern insulation codes; the installer's heat-loss calculation, not a square-footage rule, decides the tonnage.
Heating design temperature: 9F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Nassau County row, 99% heating, PDF pages 84 to 86 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 9F figure is the Nassau County cold-day number a Roslyn heat pump is sized against, so ask the installer to show the system's heating output at 9F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 71% of Roslyn on gas and 8% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Roslyn home has 4.5 rooms and was built around 1955, 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 Roslyn. The public number is the number the contractor quotes from.
No local contractor is named on this door for Roslyn yet. A request from this page goes to the first licensed shop that takes the door.