Hot Tub Rules: Manchester vs Nashua
How do hot tub rules rules compare between Manchester, NH and Nashua, NH?
Manchester and Nashua have similar restriction levels.
Manchester, NH
Hillsborough County
Manchester regulates hot tub and spa installation including electrical permits, barrier requirements, and placement rules.
View full Manchester rules →Nashua, NH
Hillsborough County
Hot tubs and spas in Nashua follow the 2021 ISPSC adopted under NRO Sec. 105-25 (per RSA 155-A). Under ISPSC Section 305.7, spas and hot tubs equipped with a safety cover that complies with ASTM F1346 are exempt from the barrier provisions of Section 305 (the 48-inch fence requirement). A building permit through the Department of Building Safety is required for installation; electrical permits per NRO Sec. 105-22.C apply. Public spas (e.g., commercial, hotel, or HOA spas serving 15+ dwellings) are additionally regulated by NH DES under RSA 485-A:26 and Env-Wq 1100 per NRO Sec. 105-26.B.
View full Nashua rules →Key Facts Comparison
| Fact | Manchester | Nashua |
|---|---|---|
| Electrical Permit | Required for 240V | Per NRO Sec. 105-22.C; NEC Article 680 bonding |
| Safety Cover | May satisfy barrier rules | - |
| Setbacks | From property lines | - |
| GFCI | Required | - |
| Adopted Code | - | 2021 ISPSC (NRO Sec. 105-25; RSA 155-A; HB 1681) |
| Safety Cover Exemption | - | ASTM F1346 cover exempts spa/hot tub from barrier (Sec. 305.7) |
| Without Cover | - | 48-inch barrier required per ISPSC Sec. 305.2 |
| Building Permit | - | Required - Dept. of Building Safety |
| Public Spa Authority | - | NH DES; RSA 485-A:26; Env-Wq 1100 |
| Permit Contact | - | 603-589-3080 - 229 Main St, 2nd Floor |
| Without Permit Penalty | - | 100% surcharge up to $275 residential (Sec. 105-22.A.(14)) |
Highlighted rows indicate differences between cities.
Manchester FAQ
Do I need a permit for a hot tub?
Yes, Manchester typically requires an electrical permit for the 240V circuit. A building permit may also be needed depending on placement.
Does my hot tub need a fence around it?
A locking safety cover may satisfy barrier requirements in Manchester. Check local code for specific requirements.
Nashua FAQ
Do I need a fence around my hot tub in Nashua?
Not if the hot tub or spa is equipped with a safety cover that complies with ASTM F1346, per ISPSC Section 305.7 as adopted by NRO Sec. 105-25. Without a compliant cover, the spa must be enclosed by a 48-inch barrier meeting Section 305.2 (4-inch sphere rule, 2-inch grade clearance, self-closing/self-latching gates).
Do I need a permit to install a hot tub?
Yes. NRO Chapter 105 requires a building permit through the Department of Building Safety, and NRO Sec. 105-22.C requires an electrical permit for hot tub/spa wiring. NEC Article 680 (NFPA 70, 2023 edition, adopted under NRO Sec. 105-19 and RSA 155-A) governs electrical bonding. Contact: 603-589-3080, BuildingDepartment@nashuanh.gov.
What about commercial or HOA spas?
Per NRO Sec. 105-26.B, 'Public Swimming Pools and Spas shall also be regulated by NH DES Public Pool and Spa Program in accordance with RSA 485-A:26 and Env-Wq 1100 Public Bathing Place.' This adds NH DES water quality, licensing, and federal VGBA drain-cover compliance on top of the local building permit.
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