{"2":{"_":{"2":{"7":{"2":{"1":{"3":{"7":{"_":"Gather the inputs — Heat pump design and heat-loss calculation · Draft — Heat pump design and heat-loss calculation · Review and issue — Heat pump design and heat-loss calculation"}},"4":{"1":{"_":"Order heat pump and cylinder (2 h, Thu 22 Apr)"},"_":"Heat pump design and heat-loss calculation (1 day, Wed 21 Apr to Thu 22 Apr)"}},"_":"The heat pump designed from its heat-loss calculation, and the heat pump and cylinder ordered."},"3":{"3":{"2":{"3":{"_":"Mark out and drill — Underfloor heating pipes, ground floor"},"6":{"_":"Run supplies and wastes — Underfloor heating pipes, ground floor · Pressure test and cap — Underfloor heating pipes, ground floor"},"_":"Underfloor heating pipes, ground floor (2 days, Fri 10 Sep to Tue 14 Sep)"},"3":{"2":{"_":"Mark out and drill — Plumbing first fix, en-suite 1 · Run supplies and wastes — Plumbing first fix, en-suite 1"},"3":{"_":"Pressure test and cap — Plumbing first fix, en-suite 1 · Mark out and drill — Plumbing first fix, en-suite 2 · Run supplies and wastes — Plumbing first fix, en-suite 2"},"6":{"_":"Pressure test and cap — Plumbing first fix, en-suite 2 · Mark out and drill — Plumbing first fix, family bathroom"},"7":{"_":"Mark out and drill — Radiator pipework, first floor · Run supplies and wastes — Plumbing first fix, family bathroom · Pressure test and cap — Plumbing first fix, family bathroom"},"_":"Soil stack and waste runs (1 day, Wed 15 Sep to Thu 16 Sep) [critical chain] · Plumbing first fix, en-suite 1 (1 day, Thu 16 Sep to Fri 17 Sep) [critical chain] · Plumbing first fix, en-suite 2 (1 day, Fri 17 Sep to Mon 20 Sep) [critical chain] · Plumbing first fix, family bathroom (1.1 days, Mon 20 Sep to Tue 21 Sep) [critical chain]"},"4":{"1":{"_":"Run supplies and wastes — Radiator pipework, first floor · Pressure test and cap — Radiator pipework, first floor"},"2":{"_":"Mark out and drill — Cylinder and plant cupboard pipework · Run supplies and wastes — Cylinder and plant cupboard pipework"},"3":{"_":"Pressure test and cap — Cylinder and plant cupboard pipework · Mark out and drill — Plumbing first fix, kitchen-diner"},"6":{"_":"Run supplies and wastes — Plumbing first fix, kitchen-diner · Pressure test and cap — Plumbing first fix, kitchen-diner"},"7":{"_":"Mark out and drill — Plumbing first fix, utility · Run supplies and wastes — Plumbing first fix, utility"},"_":"Radiator pipework, first floor (1.5 days, Tue 21 Sep to Thu 23 Sep) [critical chain] · Cylinder and plant cupboard pipework (1.5 days, Thu 23 Sep to Fri 24 Sep) [critical chain] · Plumbing first fix, kitchen-diner (1.6 days, Fri 24 Sep to Tue 28 Sep) [critical chain]"},"5":{"1":{"_":"Pressure test and cap — Plumbing first fix, utility · Mark out and drill — Plumbing first fix, cloakroom · Run supplies and wastes — Plumbing first fix, cloakroom"},"2":{"_":"Pressure test and cap — Plumbing first fix, cloakroom"},"_":"Plumbing first fix, utility (1 day, Tue 28 Sep to Wed 29 Sep) [critical chain] · Plumbing first fix, cloakroom (1 day, Wed 29 Sep to Thu 30 Sep) [critical chain]"}},"_":"The soil stack and wastes, first fix in every wet room and the kitchen, radiator pipework upstairs, the cylinder cupboard, and underfloor heating pipes downstairs."},"4":{"1":{"1":{"_":"Install the heat pump outdoor unit (1 day, Wed 6 Oct to Thu 7 Oct)"},"2":{"6":{"_":"Radiator, bedroom 1 (1.5 h, Wed 13 Oct)"}},"3":{"1":{"_":"Set out — Sanitaryware and brassware, en-suite 2 · Fit and connect — Sanitaryware and brassware, en-suite 2 · Test and silicone — Sanitaryware and brassware, en-suite 2"},"4":{"5":{"_":"Towel rail, family bathroom (1.5 h, Mon 18 Oct)"},"_":"Shower screen and silicone, en-suite 2 (2 h, Mon 18 Oct) · Towel rail, en-suite 2 (1.5 h, Mon 18 Oct)"},"5":{"_":"Radiator, bedroom 3 (1.5 h, Tue 19 Oct)"},"6":{"_":"Radiator, bedroom 4 (1.5 h, Wed 20 Oct) · Set out — Sanitaryware and brassware, family bathroom · Fit and connect — Sanitaryware and brassware, family bathroom · Test and silicone — Sanitaryware and brassware, family bathroom"},"7":{"_":"Set out — Sanitaryware and brassware, en-suite 1 · Fit and connect — Sanitaryware and brassware, en-suite 1 · Shower screen and silicone, family bathroom (2 h, Thu 21 Oct)"},"_":"Radiator, bedroom 2 (1.5 h, Mon 18 Oct to Tue 19 Oct) · Sanitaryware and brassware, en-suite 2 (6 h, Fri 15 Oct to Mon 18 Oct) · Sanitaryware and brassware, family bathroom (7 h, Wed 20 Oct to Thu 21 Oct)"},"4":{"1":{"5":{"_":"Shower screen and silicone, en-suite 1 (2 h, Fri 22 Oct)"},"_":"Set out — Sanitaryware and brassware, cloakroom · Fit and connect — Sanitaryware and brassware, cloakroom · Test and silicone — Sanitaryware and brassware, en-suite 1"},"4":{"_":"Utility sink and washing machine (4 h, Mon 25 Oct) · Test and silicone — Sanitaryware and brassware, cloakroom"},"5":{"4":{"_":"Towel rail, en-suite 1 (1.5 h, Tue 26 Oct)"},"_":"Commission the cylinder (4 h, Tue 26 Oct)"},"6":{"6":{"_":"MCS certificate and heat pump notes (2 h, Wed 27 Oct)"}},"_":"Sanitaryware and brassware, cloakroom (6 h, Fri 22 Oct to Mon 25 Oct) · Sanitaryware and brassware, en-suite 1 (6 h, Thu 21 Oct to Fri 22 Oct) · Commission the heat pump (MCS) (1 day, Tue 26 Oct to Wed 27 Oct) · Unvented cylinder certificate (2 h, Wed 27 Oct to Thu 28 Oct)"}},"2":{"1":{"5":{"_":"Connect sink and appliances (4 h, Fri 5 Nov) [critical chain]"}},"2":{"_":"Snag fixes: plumbing (4 h, Thu 11 Nov to Fri 12 Nov)"}},"_":"Sanitaryware, showers, towel rails and radiators, the heat pump installed and commissioned with its MCS and cylinder certificates, the appliances connected, and the snags."}}}}},"_":{"_":{"_":{"_":{"_":{"_":{"_":{"_":{"_":{"_":"MIRROR — Plumber (plumber) on spine:house-2027: what this hand WILL DO at each horizon, own work only. Each job sits at the smallest period that contains it on the clock; a job that crosses a boundary rises to the coarser rung."}}}}}}}}}}